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  • Blog entry
    Long time e-Rocks seller Gábor Koller has hit the news recently in his native Hungary! Congratulations to Gábor and his discovery and subsequent IMA approval/publishing of the new mineral rudabányaite. Gábor self collected the then unknown specimens 17...
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    Reiner and I retired to Cobalt, Ontario, Canada a little over a year ago. When we aren't out exploring the old mine sites in and around the area, we devote our time in support of the Cobalt Historical Society. The group maintains the Heritage Silver...
  • Blog entry
    On 1st October 2017 there will be some changes to the e-Rocks.com business plus the Terms & Conditions. The e-Rocks.com business will be transferring from our current Thames Valley Minerals ownership to a new company registered in the UK, e-Rocks Ltd...
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    Expert photographer and mineral collector from Austria, Andreas Schmid has recently being showing some excellent photographs using a light source at an extreme angle to the faces of the subject crystals.     I would have trouble explaining the physics...
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    Currently on offer in Sal's Mineral auction - see Item Reference link below. This gold nugget is from Bendigo, Victoria, Australia and weighs in at 59gr with dimensions 3.5 × 2.5 × 2 cm. In terms of size and weight of gold this is one the biggest gold...
  • Blog entry
    Within Peter Uerpmann's collection of European minerals we came across quite a large comparatively heavy specimen (110g) of slaggy matrix filled with bright metallic octahedrons of silver to 1mm stacked in pagoda-like parallel groups, labelled from ...
  • Blog entry
    A little bit of excitement for a new discovery/identification of bazzite in the Western Alps, Piedmont, Italy. Usually highly sought after by collectors, bazzite is a rare scandium rich type of beryl usually small with a charateristic strong baby blue...
  • Blog entry
    Sharyginite was listed as a new mineral, approved pending publication in the June 2017 Mineralogical Magazine. The formula is Ca3TiFe2O8 it was first identified in material collected from Caspar Quarry, Bellerberg, Eifel, Germany. Probably unsurprising ...
  • Blog entry
    This weekend three of my friends visited me for some analytical work on their self collected and collection material. One of them had an old Tsumeb sample hosting filigrane silky masses on germanite renierite matrix. Not very beautiful, but obviously...
  • Blog entry
    13th & 14th August 2016 is a date for all UK based collectors to add to your diaries.... ........there is a new show being added to the UK mineral show circuit. Derbyshire based Don Edwards in conjunction with Tennants Auctioneers are launching the...
  • Blog entry
    This project is all about new finds which were confirmed by XRD and other methods. It will be updated from time to time. The download of the file for December 2017 is available here: http://mineralanalytik.de/images/REMBILDER/mineralreport3.pdf
  • Blog entry
    Last weekend I was reading on the BBC website about the discovery of a "lost" portrait painting by Rubens of George Villiers, the 1st Duke of Buckingham (d.1628). It turned out the painting was lost in plain view hanging and on public display in Glasgow'...
  • Blog entry
    Belgian collector Jean Dehaye has recently been showing pictures of his recently collected specimen from Beez, Naumur, Belgium. A little over 2cm across comprising a hollow fossil cast with calcified internal ribs covered with micro honey coloured...
  • Blog entry
    Since we launched the new e-Rocks in September 2015 we have been busy behind the scenes working on small revisions and tweaks, plus of course doing all the other work in running the show. Today we have just upgraded the site to unleash a whole lot of new...
  • Blog entry
    We came across this this specimen of bright pine green chalcosiderite with goethite in a box yesterday. Very dirty, but with its label in the box. The specimen has cleaned and trimmed well to reveal its interest. Chalcosiderite was first noted as coming...
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    It was in August last year that we reported the our page on Facebook had reached 8,000 likes, well now we have risen to the 10,000 mark. We continue to use our page to provide our Facebook followers a daily snapshot of the e-Rocks site new listings,...
  • Blog entry
    Reading something on Facebook by Ru Smith reminded me of this story about the demise of one of Cleveland's (now Yorkshire) more prominent land marks. The hill was originally a "Sugar Loaf", outlying the North Yorkshire Moors. The geology is sandstone...
  • Blog entry
    George pulled this out of a box in the warehouse and challenged me to make a decent spin of this. Black & white minerals are proving quite hard to photograph in the new box, this one has lots tiny detail and depth of field. Aegirine - Mount Malosa,...
  • Blog entry
    In our current TVM auction we have added a few specimens from the Warren Taylor collection. We have known Warren for 15 years and have handled and advised on the disposal of a great number of his minerals since 2007. Within our database we have set up a...
  • Blog entry
    You may have noticed today's home page centre has changed; usually we display "today's auctions closing", but today we are showing "all auctions". There is a simple reason for this. Because of demand from our sellers, we have had to increase our schedule...
  • Blog entry
    Here is a tremendous specimen recently posted by Facebook friend and fellow collector Yasuichi Okazaki in Japan. The specimen 37mm X 26mm X 46mm is primarily sphalerite crystals but intergrown with bright gold wires. In his post Yasuichi goes on to...
  • Blog entry
    Quite often minerals appear online from places that one is never likely to visit, some places like Tsumeb or Trepca are well photographed and beautiful, some of course ugly. One place I have never visualised is the Tatra mountains spanning Poland and...
  • Blog entry
    The Hampshire Mineral & Fossil show is on Saturday 5th September at its usual venue in Lyndhurst Community Centre. Time: 10:00am - 16:30pm. The Hampshire show although small is always well attended and usually has some nice things to see, with...
  • Blog entry
    Back in 1979 at a place called Tomahawk Creek near to Rubyvale in Central Queensland, Australia, a 2020 carat (404gr) yellow gem sapphire was discovered. The story alleges that a local boy, on his way home from school, spotted the gem exposed in loose...
  • Blog entry
    A little self indulgence here; not only is liroconite one of the "holy grail" UK minerals, it is one of my favourites! This specimen listed by Carsten is small but exhibits excellent crystals, and is beautifully photographed! Check out the other photos...
  • Blog entry
    This amazing specimen of dolomite was collected today from the mines at Trepca in Kosovo. Well known for its excellent common sulphide and carbonate crystallisation, I have never seen on like this before!
  • Blog entry
    I found this petrified “hamburger” among the landscaping cobbles at my old house. It is a water-worn limestone rock that has a layer of fossilized creatures. We keep it on display in a McDonald’s container and bring it out for show and tell regularly....
  • Blog entry
    Hi All, We have fixed the problem with accessing e-Rocks yesterday. The rescheduled end times for yesterday's auctions are now updated. Note, these auctions will close across today and tomorrow along with the programme listings with altered times. Please...
  • Blog entry
    A couple of weeks ago we were contacted by a collector who had stopped collecting and was interested in moving his specimens on. After completing a purchase last week and having been away in Bakewell all weekend, today was the day we had arranged to pick...
  • Blog entry
    In the office this morning I worked out some interesting e-Rocks facts for the last year. In 2016 we have run 1555 auctions with 59,373 listings added to the site. We have sold 49,161 items. Also in 2016 we have served 629,183 visitors with 6.45M pages...
  • Blog entry
    It is approaching the second anniversary of George joining the e-Rocks team; so after a record 24 consecutive "Employee of the Month" awards we thought it time to reward him with a nice trip to Spain. The upshot to this will be that we are going to be...
  • Blog entry
    It is that time of year again and I am sure you will have noticed a number of "Munich" themed auctions lining up on the schedule. Suffice to say there have been some tremendous minerals coming through and still more to come over the next week or so, and...
  • Blog entry
      In the depths of Peter Uerpmann's collection we came across a block of massive crystalline halite - rock salt. The locality is given as Asse II, probably picked up during his time as a worker in the German Nuclear industry. Asse (Shaft) II is situated...
  • Blog entry
    We came across this specimen in material from the Alex Franz collection, formerly belonging Hans-Peter Schroder and dated 1972. The piece is a flat backed sandstone matrix covered in pyromorphite but also small octahedral crystals of galena replaced by...
  • Blog entry
    This chance discovery in the TVM shed turned out to be very interesting indeed. The specimen itself comprises very rich crystalline cinnabar in quartz matrix, coming to us from old collection material from Germany. Labelled simply as Grube Sizma, b....
  • Blog entry
    It has already been quite a month, but today we passed another milestone with this specimen of bakhchisaraitsevite. No it isn't the most unpronounceable mineral on the site, or the longest mineral name not to use a U or O, though it might be either! This...
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    Here we are back in Bakewell for the 15th consecutive year. By comparison with others a short innings but one of the constants throughout the life and times of TVM.  George and I celebrated with a Chinese meal in the restaurant that used to be an Indian...
  • Blog entry
    One more yellow sphalerite, this one from Spain, 18+ct "Markoh-i-noor" cut, best choice to boost the dispersion! Sphalerite Cut & Photo by Egor Gavrilenko
  • Blog entry
    The mines at Merelani in Tanzania are not only already famous for the gemstones tanzanite, tsavorite, scapolite etc. but also for the superbly well crystallised sulphide minerals namely pyrite, wurtzite and of course alabandite, all coming to prominence...
  • Blog entry
    Munich Show is coming up in a week's time. We are looking forward to being there as a guest of/helping with Christian Rewitzer in Hall A6.551 - the usual place. We will be there from Wednesday 28th October to close time on 31st October. Buyers,...
  • Blog entry
    As we announced a few weeks ago the Russell Society has been tendering for a purchaser for the Norman Cogger collection. The process has now been completed and we are pleased to announce that we, TVM are the successful bidders. Having evaluated the...
  • Blog entry
    This really "unique" specimen of fluorite from Cavnic, Romania sold on e-Rocks a few hours ago for €805 (c$900). Not only is the specimen pretty exceptional but also I believe it holds the site record for bidding extension. As the bidding rules go, an...
  • Blog entry
    Tomii Mine in Tochigi Prefecture, Honshu Island, Japan is quite well known for its quartz and amethyst clusters with crystals arranged in sprays around a central crystal. This specimen recently posted on Facebook by Shigeki Nishimura in the Quartz group...
  • Blog entry
    This fine red vanadinite TN didn't make the buyer's cut in last night's auction and remained unsold. Look out for it in our next TVM Mixed auction later in April for a second chance - it will be reduced to $5 start...
  • Blog entry
    Having recently changed over from bridge photography to DSLR and discovered the joys of stacking and rotational presentations, photography here has changed a lot in the last few months. Previously seeing other people's macro photos has always left me...
  • Blog entry
    As an online seller it is always good to hear something we have sent out has been received and lived up to expectations. Here is one from Leor Goldberg recently published on Facebook. Recent acquisition! Gypsum with included thometzekite on matrix. Both...
  • Blog entry
    Topical with some work we have been doing on locality database this newslink has been circulating the web mineral chat areas recently. The content of the article is about the intention to re-open Tsumeb again for specimen (crystal) mining and as an...
  • Blog entry
    George and I are back from our Christmas road trip into Germany via Belgium and France. What we didn't pick up in minerals we certainly made up for with adventure and festive fun. Normal service with email replies etc will return from today, after a bit...
  • Blog entry
    Wishing all our visitors, sellers and buyers a very Happy New Year and great things from 2017. Thinking things over this morning I had a sobering thought; there are now 357 days left before Christmas 2017 and the next planned "dark day" with no auctions...
  • Blog entry
    Hi everybody! Next December 16, 17 and 18 there will be celebrate MinerELX MineralShow in Elche (Alicante) Spain. We have opened a Mineral Photo Contest and we would like to invite you to participate. Mineral Contest with 3 categoies: - Alicante mineral...
  • Blog entry
    We have just corrected a glitch in one of our email servers. The glitch had resulted in a backlog of unsent messages. I have set the server to send these out now, apologies if some of the messages are out of date. Current invoices will be included in...
  • Blog entry
    Greenockite from Tsumeb forms beautiful hexagonal orange crystals in cavities of Cd rich galena. Often the specimens host brownish Cd rich smithsonite. Crystal size is usually around 50-100µm. Studies under the electron beam reveal the details of the...
  • Blog entry
    As promised I took some pictures of the displays within the Mine to Mine Exhibition. If you are at Munich it is really worth going to see this. This is not all the cases, or all the minerals within the cases shown, but hopefully gives and appreciation of...
  • Blog entry
    Not well known for its mineral collecting Albania seldom figures as a source in many collections or available minerals. In 9 years of e-Rocks we have only ever seen 2 specimens and localities. The current specimen is a newly "discovered" combination of...
  • Blog entry
    This excellent large specimen of smithsonite was one of a large suite of smithsonite in Warren Taylor's main Tsumeb collection. The piece is a mound of flattened crystals pink in colour with an orange "cadmium derived" coating to the surface. Collected...
  • Blog entry
    These amazing images recently appeared in the Journal of American Chemistry Society. The picture shows individual molecules obtained by microscopy - the scale is mindblowing - 1 Angstrom length is 1 X 10-10m. Amazing to see how the structures that have...
  • Blog entry
    Love this photo posted by Megan Scott showing behind the scenes with e-Rocks seller Jason Smith, AKA Bucket of Holes Minerals. Jason has been active on e-Rocks now since December 2012 and has been providing a super range of rare and interesting minerals...
  • Blog entry
    It has now been 3 years since George joined us at TVM and a week since joining e-Rocks ltd! To celebrate he went off on his own this week to appraise and buy a mineral collection down in the West Country. We received a lead about the collection a few...
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    When I started examining micro minerals I came across a nice specimen hosting olive green bartelkeite. It was pure luck to find this mineral. This is what I can say now looking back at the small number of specimens I had. This makes the species to one...
  • Blog entry
    The project to open a pit to extract tungsten at Hemerdon has been going for a few years, but now it has entered into production with the first concentrate being produced. As reported by the Plymouth Herald "it represents another major milestone in the...
  • Blog entry
    Searching for radioactive minerals is a piece of cake compared to metal detecting. If you get a signal, you’ve got a target. None of this business of uncovering nails or shotgun casings, or the end of your steel-toed boot. Still, using a mid-century...
  • Blog entry
    As they say "you live and learn" and in the interest of mineralogy this is nearly a daily experience. The photograph above shows some little grain-like crystals of native sulphur set on scorodite from Hemerdon Bal in Devon, UK. I have never seen these...
  • Blog entry
    Back in November 2011 I offered this specimen in my birthday auction. It is still one of my favourite Weardale specimens ever. Here is its listing Fluorite Heights Quarry, County Durham, United Kingdom Miniature (4.5-7 cm) Size: H:4.8cm x W:4.8cm x D:4....
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    Our e-Rocks database is continuously growing and flexing as our sellers add new mineral types, varieties and of course the odd thing that we think is relevant to the naming of items on the site. Recently I was adding a group of related "new" minerals,...
  • Blog entry
    Recently listed online by Roberto Rojas of Minerat minerals is a remarkable specimen of kröhnkite & blödite from Coronel Manuel Rodriguez Mine, Mejillones, Antofagasta, Chile. At 25cm across the bright blue kröhnkite would be impressive in its own...
  • Blog entry
    I collected the fluorite specimen above back in April 1996. I remember it well from the events of the day before! In those days I used to travel up from the South of England for weekend mooching trips in and around Weardale, usually arriving at the...
  • Blog entry
    Life at TVM isn't all about swaning off to shows, buying minerals or photographing/describing things for our weekly lists. All this activity leads to one thing: an untidy stock room. Usually we can survive for a few months before needing to tidy up. For...
  • Blog entry
    Coming up to completion in today's Cartils minerals auction this specimen of obsidian from Douglas, Idaho, USA was designated item number 220000 in our catalogue when uploaded. Our catalogue started back in January 2006, and has grown with some...
  • Blog entry
    Our technical department at e-Rocks (AKA my wife and George) have been on at me for some time to get a decent mobile phone as I am usually hard to track down when offline. Coupled with this we have a mobile version of the cataloguing/inventory system...
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    I was visiting an e-Rocks customer the other day, and was awestruck by his collection of radio-active artefacts. Many things have changed over the years as learning and science have made our lives safer, but looking back some of these are just incredible...
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    Until I researched it I would never have thought vanadinite likely to occur at Ilfeld in Harz, Germany. The specimen we discovered is a manganite matrix with tiny pockets of braunite, and with one solitary yellow (part) crystal within. Being solitary and...
  • Blog entry
    George uncovered this photogenic little millerite specimen last week and the picture caused quite a stir on Facebook over the weekend. Labelled as being from the Windsor Colliery, Abertridwr near Caerphilly, Wales it displays a very pretty array of...
  • Blog entry
    e-Rocks seller and Austrian collector Andreas Wallisch has been showing off a new addition to his collection. A fine specimen of a variety of Lumachelle, called Bleiberg Shell Marble (Muschelmarmor)from Bleiberg in Carinthia in Austria. This particular...
  • Blog entry
    Liroconite is just one of those minerals that attracts attention; it is rare, colourful and good specimens usually only found in old collections. When a piece is listed on e-Rocks we usually get excited and this one is definitely no exception. We saw...
  • Blog entry
    We didn't quite get to 50000 uploaded items during the first year of the "new" e-Rocks website, but we were very close! Here we are 3 days later and courtesy of Volker Betz with a whitlockite specimen from Tip Top Mine, South Dakota, USA we crossed the...
  • Blog entry
    As Facebook does, this fantastic specimen photo posted by Val Collins in May 2012 appeared in my timeline today. Not many of these specimens of cerussite with pyromorphite from Daoping Mine appeared, this must be one of the best examples. Thanks to...
  • Blog entry
    Above is a picture from a few days ago of our last pallet of minerals to arrive for 2016. What a busy year it has been and now it is nearly over. Christmas and the holiday period are all set and there are some terrific contributions this year our...
  • Blog entry
    George and I were discussing a mineral "anatolyite" newly added to the e-Rocks database, and couldn't find out who it was named for via the usual sources. We know Anatoly Kasatkin very well, and through his involvement with systematic minerals and the...
  • Blog entry
    The other week I was experimenting with lighting and rotation using tanzanite. I managed to take these photographs - not much dichroism seen in the "rock tack"!
  • Blog entry
    Carsten Slotta, of Mineral Treasure has this specimen of fluorite currently listed on e-Rocks. From the lesser known Black Forest locality of Igelschlatt Mine, Waldshut the piece is covered in amazingly perfect hexakis-octahedral crystals. (It should be...
  • Blog entry
    A Sunday lay-in follows the early Saturday start at Bakewell. The show does not open until 9am. This allows the dealers to get back or recover from various excesses of the previous night. Last night in addition to the Dealers' dinner there were at least...
  • Blog entry
    Friday is the first open day of the show, namely for dealers and professionals. As usual footfall is usually up along with the protective film on the carpets! Our job today was to help with Christian Rewitzer on his booth, plus meet with customers to...
  • Blog entry
    Last month we blogged about the acquisition of an important Wheal Maudlin "Horsetooth" siderite specimen from an unspecified lot of minerals at an auction in North Yorkshire. Siderite - Wheal Maudlin, Lanlivery, Cornwall The provenance of the piece has...
  • Blog entry
    So goes the advertising strapline, and my reaction to seeing this photograph of gold bars, coins, nuggets and mineral ore/specimens. The haul of 30,000lbs, approx 1.5 tonnes was recovered from the wreck of the SS Central America from deep of off the...
  • Blog entry
    Great news from Thames Valley Minerals; we have just completed the acquisition of the final suites of specimens in the Warren Taylor mineral collection. Warren (and the Taylor family) have achieved recent fame as the people behind the Rainbow of Africa...
  • Blog entry
    It is always interesting when a seller messages me because a mineral isn't listed on our main database. Jason Boyd Smith, AKA Bucket of Holes made such a request for the mineral "Schmidite" yesterday. Sure enough it was not listed with us, and further...
  • Blog entry
    Hi all, as the new site is online now and a lot to explore, i just want to give thumbs up for the e-rocks crew. Quite a task to manage all and fix the (inevitable) bugs which are quite usual if a system is relaunched or set up new. I am looking forward...
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    Having just been away for a fine week's stay at the village of Belstone, near Okehampton on Dartmoor, it was a neat coincidence that an auction selection coming through is from Belstone Consols Mine. Whilst staying in Belstone I had already checked into...
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    Back in 2009 after Munich show I did a flit back to the Czech Republic to pick up a big consignment of Dalnegorsk minerals - some 40 flats. They are still going strong, here is a galena and manganoan calcite combination that came out this week.
  • Blog entry
    Out for a run last night and listening to the radio, in particular an excerpt about Greek mythology being discussed by Stephen Fry. Not my usual digest but it has been one of those weeks! Anyway the piece was about Dionysus the Ancient Greek god of wine...
  • Blog entry
    When we were at Bakewell Show last month, we bumped into someone we had not met before, Barry Taylor who also lives very close to us. Barry is a collector at heart, but also runs an attraction called "Geology World" from his home in Chesham, Bucks. Barry...
  • Blog entry
    Here is an old book, with a wonderful fantasy cover. It would be hard not to pick up this combination of graphics and illustrations and look inside. Schubert's Natural History of the mineral kingdom for school and home dates to the late 1880s and was...
  • Blog entry
    Castle Drogo, Drewsteignton, Devon, UK   Castle Drogo is a large stately home on the eastern side of Dartmoor. Constructed between between 1911 to 1930 by architect Edwin Lutyens for English enterpreneur Julius Drewe in the image of a medieval castle...
  • Blog entry
    The other day we added the new mineral wildenauerite to the database. This phosphate mineral with the formula: Zn(Fe3+,Mn2+)2MnFe3+(PO4)3(OH)3(H2O)6·2H2O was approved pending being published by the IMA in August/September 2017. Isostructural with new...
  • Blog entry
    Peshawar based Imran Bangash of Spin Ghar Minerals has just returned from an exciting trip to the mining locality at Marki Khel in Khogyani, Afghanistan. The locality is well reknowned for its wonderful specimens of andradite, epidote, diopside, and...
  • Blog entry
    Here is a "lucky shot" of small inclusions of pyrite floating within a clear crystal of fluorite from Heights Quarry, Weardale. The crystal is 13mm across and was spotted by George at Bakewell last weekend. (click to enlarge) Below might be the actual...
  • Blog entry
    Of course earthquakes are not funny, but this report on Facebook did make me laugh....thanks to my Facebook friend Matt Houston for the report. Matt Houston - "Just had an earth quake here. 9.43" Other - "That's a very strong earthquake - Do you think we...
  • Blog entry
    It has already been a week since Oxford show and we are heavily into our pre-Christmas preparations. Last week we had a visit from Ed Loye, who stopped by to take a look at the TV Towers operation. We have known Ed since both his and our early days, and...
  • Blog entry
    The calendar has quickly stepped around again and this year's Autumn show schedule is beginning soon; in two weeks it will be Bakewell time once more. George and I will be there again this year and no doubt will see many of our UK based collector friends...
  • Blog entry
    I have been interested in and collected Romanian minerals since 1975, I don't recall seeing a quartz crystal in section before. This novelty specimen of quartz from Herja Romania shows some interesting internal features. A crystal section cut and...