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  • 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
    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
    ....and alkali mineral collectors. We have just purchased a small collection specialising in these minerals from UK collector Ben Gibson. The collection also contains a small suite from Cornwall, plus interlopers from other places like USA, Norway, India...
  • Blog entry
    Pyrite - Victoria Mine, Navajun, Spain   Introduction: I know the title is a terrible Alistair MacLean pun, but it is hot here today and it was the best I could come up with. Spanish sellers Baltasar and Elvira at BS Rocks kindly sent me over...
  • Blog entry
    We recently uncovered a specimen of botroidal marcasite and siderite from Hector Mine near Ibbenbüren in Münsterland (North-West Germany). The specimen itself is typical of the "schalen" or shell type ore formations distributed across this area famous...
  • Blog entry
    What a great start to Munich Show 2015 it has been. We arrived at the Show at around 1400Hrs local time and things were already buzzing. Almost immediately we were directed to the booth of Wendell Minerals to look three! cabinet sized fluorite specimens...
  • Blog entry
    As I posted yesterday's blog covering Roger's venture into Scottish gold panning I decided to share it into the excellent Facebook group Collectors of British Minerals - also known as COBM. I am sure I have mentioned this before; COBM is an excellent...
  • Blog entry
    The Shinkolobwe radium mine, 1922. The Belgian mining engineer above is sitting on a 7 ton boulder of pitchblende. An immense quantity of gamma-rays is irradiating his gonads. Safety equipment, a tie and a pith helmet. Unknowable to to the engineer,...
  • Blog entry
    This week we have some big things to do on the e-Rocks service. We last went through this in September 2015 when we had much less traffic and data to store. If things are going well 5 years is quite a long life-span for a system, and apart from routine...
  • Blog entry
      As we have passed Thanksgiving and now moving into the Christmas festive period, you might want to indulge yourself in a box of chocolates to go along with the celebrations? If so you might be interested in this listing from Norbert Stotzel...
  • Blog entry
    As many will already know we maintain a daily blog of new listings, auctions closing and photography over on the e-Rocks Facebook page. Over the last 18 months we have built quite a following and it is thanks to our Sellers, and Visitors that we've...
  • Blog entry
    If you don't already know about it, here is a website for anyone who is interested in old mining history, especially related to the western states of the USA. The website contains a huge and comprehensive database of mining localities, mining information...
  • 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
    Above, a 1.58 gram nugget of gold, resembling a lizard-like creature, with adherent quartz matrix, Zwedru, Liberia. In the early 1980's a couple of good mates of mine were living in Monrovia, Liberia. While there, Linda & Simon visited an artisanal...
  • 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
    Steverustite is a secondary mineral of copper and lead with an interesting and rarely occuring (in nature) thiosulphate anion (S2O3) within its structure. Named after UK mineralogist and collector Steve Rust the mineral was first discovered at the...
  • 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
    After a long time preparing it, we are happy to be offering here on e-Rocks the B. Florin collection. B. Florin was a knowledgeable Swiss collector. He was specialised in Swiss localities, but specialized in choice specimens, odd quartz shapes and...
  • Blog entry
      Today we saw our e-Rocks User registration count reach 7500; this means that barring the odd D.Duck and K.Kong we are connected to 7500 mineral collectors worldwide. Great news if you are prospective seller, re-assuring if you have not already...
  • Blog entry
    In November 1777 French botanist Joseph Dombey, above, set sail for Peru and Chile, as part of the joint Spanish-French Ruiz & Pavón Expedition. The arduous eleven year botanical exploration provided a wealth of plant specimens, an international...
  • 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
    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
    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
    The Birmingham Auction house Fellows recently conducted an auction of some 257 lots of worked Blue John. The group photo must almost be without precedent! The catalogue contained just about every type of object that has ever been fashioned from Blue John...
  • Blog entry
      Some interesting additions made to the e-Rocks catalogue from new seller Marco Frigerio of Classic Rocks and Gems, for both Iridium Chalk and Iridium Clay: these are examples of an iridium rich sediment found localised in unique layers in...
  • Blog entry
      As it is my birthday today I thought this little bit of mineral related trivia would brighten up the day. Early last year I was listing an aragonite (and gypsum) specimen from Tomnadashan Mine, Wester Tullich, Loch Tay, Scotland.  An intrguing...
  • Blog entry
    Organised by the Sussex Mineral & Lapidary Society www.smls.org.uk Saturday 18th November 10.00am - 4.30pm Clair Hall, Perrymount Road, Haywards Heath, RH16 3DN Over 40 dealers with minerals, gems, fossils, meteorites, flints, books, &...
  • 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
    GPSmineral, located mineralogy, is a new project that wants to share mineralogy passion all around the world, we have started with a few articles about spanish, italian and USA mineralogy. We have a map to locate. For the moment we only have one...
  • 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
    Another feature we have put in place for the new website is a table of most popular searches on the site within the last 7 days.  A search counter increments each time during a session, a search term is entered. The table is displayed under "Searches" in...
  • Blog entry
    Facebook friend and collector Michael Pfeil posted a gallery of fine micro photos of specimens collected in the Bergischen Land area of North Rhine - Westphalia. Here is a translation of his album introduction and a few of his 165 photos. "In this album...
  • Blog entry
    If you’ve tried to hunt for minerals using a metal detector, you are familiar with the challenges. Especially if you are looking for, say, silver at an abandoned mine where all of the structures have been leveled to the ground. Trash is everywhere. Old...
  • Blog entry
    Hi Everyone, As the coronavirus outbreak continues to affect all our communities and day to day life wherever you live, we want to share our latest thoughts on how we are trying to adapt to this new reality. As you will have seen, and after discussion...
  • 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
    A few weeks ago I was contacted by a local family who had a quantity of minerals, fossils and shells they had acquired during their times abroad in the Arabian Gulf. They live only a few minutes from TV Towers so there was no difficulty in visiting 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
    Six o'clock tonight was the end of our last full day at Munich 2016. We are back tomorrow but will be leaving early to travel back to the UK. Some great memories of the show this year but only just enough time for meeting and speaking to everyone we...
  • 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
    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
    Recently reported the Michigan Tech website - Two leading Michigan universities have joined up to preserve a historic mineral collection. The University of Michigan Collection, including the collection of Douglass Houghton will be located and displayed...
  • Blog entry
    Back in February 2016 we created a short blog "Pull Your Fingerite" about a BBC article (and others) covering a paper by Dr Robert Hazen, of the Carnegie Institution in Washington DC, and Prof Jesse Ausubel of The Rockefeller University, in New York...
  • 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
    Yesterday George was off at a stag party so I was left in charge of setting up the new auctions beginning on the day. One of the sub tasks required is to cross check and ensure that any new localities added to the database are cross checked online and...
  • Blog entry
    Some highlights from today's photography at TV Towers
  • Blog entry
    How the days and months seem to fly by, and now summer has passed we are into the autumn season of mineral shows. We start our outings as usual by visiting Bakewell show next week end. Arguably Bakewell (Rock Exchange) is the UK's largest show for...
  • Blog entry
    Recently e-Rocks enabled the sale of a very rare mineral - Ramazzoite. The specimen above, measuring 1 × 2.5 × 1.2 cm, sold by Ligurian Minerals for £681. Found so far only at the type locality, Mount Ramazzo Mine, Genoa, Italy, the specimen is part of...
  • Blog entry
    Back in 2007 when we began cataloguing Warren Taylor's Tsumeb minerals we came across a real stand out rock. It was oddly labelled as "Quartz Psm Azurite" but was obviously gypsum and appeared to have formed around something round like a pipe. Warren...
  • 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...
  • 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
    Mineralogy’s greatest curiosity was not how Dr. John Woodward (1665 - 1728, above) obtained a pallasite meteorite for his collection, decades before the meteorite was actually discovered in Siberia…. Also it was not how Britain’s first true...
  • Blog entry
      After a short break we welcome back e-Rocks dealer – Jaroslaw Skupiewski, from Poland. Under the banner Geo-Trader Minerals Jaroslaw has been establishing himself as an European show dealer for the last 12 years, but he has also been busy online...
  • Blog entry
    In the world of minerals different localities can often be distinguished by variations in morphology and or associations; for example it is comparatively easy to determine that a dioptase specimen was collected in Tsumeb over say Kaokoveld or Altyn. I...
  • Blog entry
    It was down to Carsten to wrap up August 2015, and boy did he find something a bit unusual! Brunogeierite is an insanely rare iron germanate found only (so far) in a few places, plus Tsumeb. The crystal habit is black octahedral crystals. For a Tsumeb...
  • Blog entry
    Burn's Night comes along every year and is mostly a Scottish based celebration of the poet Robbie Burns, so I try to get some "haggis neeps and tatties" in my diet during this time. It also serves to remind us that another e-Rocks anniversary is coming...
  • 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
    Former e-Rocks seller and gemstone dealer from downunder, Klaus Brucksch has just been showing off some grizzly remains trapped in amber. These amber specimens come from Myanmar and the creatures are a bit different to the flies ants and other insects we...
  • Blog entry
    Was happy to see a nice post from Marc Allen Fleischer of the Fleischer Museum on Facebook the other day. Mark had recently purchased and received the above Megiliggar apatite from TVM. This is his post, "You don’t expect to find a Pegmatite in England...
  • Blog entry
    Analysis of a sample from the Moschellandsberg mainly consisting of malachite, calomel and minor eglestonite provided the evidence of a new mercury arsenate from this locality: Chursinite. Previous SEM-EDS analysis revealed only the elements Hg, As, O...
  • Blog entry
    Venus’ rolling uplands in 1982, with Venera 13 in foreground. Well below the sublimation altitude The North Pennines region of England is blessed with mineral riches. During the 18 & 19th centuries, vast quantities of lead, silver and zinc were...
  • 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...
  • 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
    Every alpine collector's dream (and most other people too) is to find the perfect pocket. Austrian Strahler Peter Eberhard has been busy on the Alps at Habachtal. Earlier this month Peter was investigating a previously worked opening high up in the...
  • Blog entry
    Cornish Explorers on Facebook usually carries a series of really interesting mining and exploration photographs for Cornish localities. One of the members, Keith Russ has just got himself a Gro Pro and a lifting drone. Fantastic toy and some fantastic...
  • Blog entry
    Here are a group of Pentire Glaze pyromorphite crystals just sold by Mike Merry of Cornwall & Devon Minerals. Recently collected and by no means tiny these crystals are typically 1cm tall. Mike has done a super job with the photography and the...
  • Blog entry
    The new e-Rocks has an archive of approximately 180,000 specimens accrued over 9 years of listing. We have now made these available to registered users of our site with further mineral and location details tied in. Here is a rather good specimen of...
  • Blog entry
    I have had this little box of granular and crystalline gold on my desk since 2007. It originates from Pilgrims Rest, Witwatersrand in South Africa. It belonged to the Warren Taylor collection part of which will be making a splash later on in the year....
  • Blog entry
    A nice photograph of our home for 2 nights over the Bakewell Show weekend. This has been our regular stop over for 14 years - now equipped with WiFi we will be online answering emails etc and hopefully adding some news from the show. Looking forward to a...
  • Blog entry
    Ahead of our trip to Munich we have just installed another new feature for all users of e-Rocks and Facebook. Within the e-Rocks Facebook page there are now 5 new page tabs with Apps that let you do the following. e-Rocks Auctions look up and open...
  • Blog entry
    Back in early 2004 I offered a suite of minerals from Palabora mine collected by John Gliddon when he worked there. This specimen was part of that collection that never sold and became misplaced in our stock system. It was discovered recently dusty and...
  • Blog entry
    Hedyphane is seldom seen from Tsumeb, but here it is formed out in small flat hexagonal crystals with white faces resting on a bed of pale green calcio-duftite. There are more excellent photographs and a specimen currently listed on e-Rocks by Christian...
  • Blog entry
    Introduction:  A few months ago I came across the mineral aldridegeite in the IMA list of minerals whilst doing some research. This sulphate mineral is a member of the develline group first discovered and only found at Broken Hill, New South Wales,...
  • 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
      My friend Paul and I recently went to The Weardale Mineral Show at St. Johns Chapel, a small village 7 miles west of Stanhope, here in the North East of England. I primarily went there to meet up with e-Rocks boss Mark. Paul went there because I don't...
  • Blog entry
    We already recently reported on the number of new minerals being added to e-Rocks in October, an impressive average of 161 items per day went up in the last 2 months. We thought it might interesting to share some of the other e-Rocks facts and figures...
  • Blog entry
    Helga Palmer and Gordon Fielder recently unearthed this copper token dated 1788 from the Parys Mountain Copper Mining Company at West Basset in Cornwall. By eighteenth century standards this little token had traveled a long way from home, but with a...
  • Blog entry
    e-Rocks seller and well traveled field collector Tasos Tsinidis from Greece, has some wonderful minerals and stories to tell about his exploits. He is knowledge of all things mineralogical and Greek is immense, he also is excellent at preparing and...
  • 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....
  • Blog entry
    Here I am back in the office on a wet and dull Monday morning after the 2018 Bakewell Show. Having spent a “full on” weekend in the bosom of the UK mineral collecting scene I am feeling a little bit tired. As usual George and I drove up to Bakewell from...
  • Blog entry
    A quick glance at this piece and it looks like a good pink cobaltoan smithsonite specimen from Tsumeb, but when you check more closely the habit and the matrix is very different; this is because it has originated from Berg Aukus! Quite a revelation as...
  • Blog entry
    Analytical investigations of the germanite and renierite associated secondary minerals have lead to the discoveries of many unique minerals eg. otjisumeite, bartelkeite, stottite from the Tsumeb Mine, Otavi Highlands, Namibia in the past decades. There...
  • Blog entry
    This really odd habit of cuprite has just come to light from the copper mines at Rudabanya, Hungary. Not seen before from here, the habit appears to be octahedral modified by cubic faces - FOV 1.5mm. The specimen is in the collection of e-Rocks seller...
  • Blog entry
    Story covered by BBC local news for Derbyshire. I am not sure if this is the same "discovery" made a few years back or something new. Certainly it looks a good deposit of usable Blue John, brilliant news for the Blue John fraternity and crafts people....
  • Blog entry
    This old label and specimen came to light the other day when we were moving some boxes around in the TVM store room. Mineralhaus Droop was based in Dresden and this label has an uncertain age but likely to date from later in the period of 1905 -1930s....
  • Blog entry
    This unusual specimen featured in my Christmas auction in 2013/2014. Smithsonite Psm Calcite. Whatley Quarry, Somerset, UK. Size: H:12.7cm x W:9.4cm x D:6.6cm Largest Crystal: 2cm
  • Blog entry
    Here is an interesting ovoid form embedded in obisidian from Coso Range, Inyo County, California. But what is inside? Answer - cristobalite tridymite & fayalite (brown crystals) Happy Easter
  • 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
    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
    A new feature on e-Rocks for both sellers and collectors is the ability to add analysis information to specimens in their inventory. Too often important analytical information is posted as an "aside" to the main pictures and not very readable. Here you...
  • Blog entry
    The Mineralogical Record have recently published their latest periodical online article "What is new on the Mineral World?". These articles, written by Tom Moore look around and review internet dealers website and feature minerals currently on view. This...
  • 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
    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
    The day before we went to Munich the nice man from UPS turned up on my doorstep with quite a large box. As it happened, the Sunday before I was out dog walking and pocket pinging on messenger learning all about a little discovery up in Weardale. A new...
  • Blog entry
    George has been working with us for nearly 6 months and the mess in the shed is beginning to get organised - it is a very big shed! Recently pulled out of a box of dealer stock I bought from Liz and Dave Hacker over 10 years ago is this Florence Mine...
  • Blog entry
    Gwennap Pit started out as a sharp indentation in the landscape caused by mining subsidence in the mid C18th. It gained a reputation as an outdoor "church" when John Welsey preached there no less than 18 times between 1762 and 1789. After Wesley's death...
  • 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
    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
    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...
  • Blog entry
    Two unusual and colourful Uranium (U) minerals have been reported from Germany for the first time: Green to bluish paddlewheelite and yellow-green glassy albrechtschraufite. The locality is Uranus Mine, Kleinrückerswalde, in the Erzgebirge Mountains in...
  • 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...