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  • 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 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...
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    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,...
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    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...
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    Plinius Earth Treasures has started its official channel here on e-Rocks since December 2017, and one of the constants of the inventory was the listing of specimens from the Bruno Cerato collection and stock. Frequent e-Rocks customers will remember the...
  • Blog entry
    James Tennant (1808-1881) was in his time one of the UK's most notable mineralogists and dealers in minerals, fossils and shells. His specimens can be found in many museums around the globe, and in many notable historic collections. In his heyday he...
  • Blog entry
    In the current YourSystemmaticCollection (YSC) auction closing tonight, as well as the usual range of rare minerals there is another mineral first seen here on e-Rocks. George was talking with Roberto Bracco of YSC at Munich and told us to look out for...
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    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...
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    We are having quite a golden time for new mineral species additions to e-Rocks. This short blog features news from from Jason Smith and Volker Betz regarding two new phosphate minerals from Foote Mine in North Carolina, USA. Apologies for the pun in the...
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    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...
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    Some years ago, around 2010 news started to trickle out about spectacular finds of collectable mineral specimens in Inner Mongolia. The first deposits brought back memories of Dal'negorsk as the geology and minerals like Ilvaite showed similarities....
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      It is Munich time again and I am sure you will have noticed a number of "Munich" themed auctions here on e-Rocks. As usual there is a great choice of minerals coming up and more to come over the next week or so, there is also a full programme of...
  • Blog entry
    During September we undertook the appraisal and purchase of Peter Uuerpmann's collection located in Guadamar Del Segura near Alicante, Spain. As the collection was in secure storage there were some challenges in getting access and seeing the minerals,...
  • 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
    Recently I obtained a specimen from Tsumeb without a name. It underwent elemental analysis and turned out to be beudantite. This case shows that elemental analysis can be very useful. Even if the precision is limited, in the most cases EDS allows to...
  • Blog entry
    Here we are enjoying a fairly non mineralogical week away in Harlech, Wales. This seagull apparently comes with the rental, certainly knows when the meal times are, and if not on time will tap at the window. As seagulls go, he is very placid.
  • Blog entry
    1730: The first prospectors in the the Franklin Mining District, Dutch miners from the Hudson Valley, unfortunately called the area "the copper tract." Although copper minerals do occur in the orebody - 38 of them, including a rare copper hydroxyl...
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    I have just been updating 2 new minerals recently added to the e-Rocks database and made a sad but interesting discovery about the name. Edtollite and alumoedtollite are comparatively newly IMA approved minerals pending publication. Edtollite Minerals...
  • 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...
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    I know there are a few collectors of unusual pseuodomorphs out there who might be interested in this. I spotted this specimen chenevixite posted by Carsten Slotta; from the photographs you can see an array of quite well defined scorodite terminations (...
  • Blog entry
    Hi all! There is a new photo contest on the way, the second Mineral Photo Contest MinerElx is open for entries until 30th of November. This year there are two categories: macro photos and micromount photos. No age limit and every participant can submit...
  • 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
    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
    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
    Coming up on 18th May 2016 is a huge auction of antique books at the German Auction house Reis & Sohn, Königstein, Germany. Within the "Manuscript & Geography" section there are a number of fascinating early books (18th to 20th century) on...
  • Blog entry
    Yesterday our friend Aamir Shah came calling as he has been doing since 2007. We first met Aamir in the car park at Bakewell Show in October 2006 and ever since he has been a regular visitor to TV Towers 3 or 4 times a year. Aamir spends 2-3 months in...
  • Blog entry
    This leiteite specimen from the Uerpmann collection recently posted on Facebook brought back fond memories of the man who's name was given to the mineral back in 1977. Leiteite was named to honour Luis Antonio Bravo Teixeira-Leite (1942–1999), Portuguese...
  • 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
    A small flake of Californian gold from Coloma, the location of Marshall's '48 discovery. Sutter's Mill was a sawmill, owned by 19th-century pioneer John Sutter, where west-coast gold was first found in significant quantities, setting off the California...
  • 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
    Long time friend and e-Rocks seller Ikram Muhammad has been a source of many interesting and unusual minerals from Pakistan (and Afghanistan) over the years. He has been involved with the correct identification of minerals and localities both here and on...
  • 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
    This super quality pure blue Lapis polished freeform 77cm tall and weighing over 48Kg is going under the hammer next month at an auction in Billingshurst, Kent, UK. The auctioneers estimate is ÂŁ5,000 - ÂŁ7,000 - see link below. Looks a really good one,...
  • 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
    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
    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
    Late to bed and up with the lark, is the usual routine at Munich Shows and today was no different. Our Hotel breakfast was excellent, very unhealthy and would set anyone up for the day. A quick ride on the U-bahn and we were back in the Halls and set up...
  • 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
    This week it was George's birthday but unfortunately work as usual in the TVM office. As it happened plans were afoot to make some homemade cupcakes and sing happy birthday. Not much chance of blowing the candle out though. All video evidence/sound...
  • Blog entry
    Originally described by Dr Peter Elliott (et al) a mineralogy researcher from the University of Adelaide after detailed analysis of a sample given to him by the Commonwealth Scientific and Industrial Research Organisation. Putnisite was was approved by...
  • 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
    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...
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    I was in our archive TVM site researching something and chanced upon this blog entry from 13 years ago. Although not quite our first the content is quite interesting and certainly gives some insight into way back then, and how numbers have expanded...
  • Blog entry
    Here is another odd mineral featured in Armin Scholer's current auction. Kaiyuhite was first proposed as a new mineral back in the 1980s by young mining geologist Tony Dunn, who had noticed and collected this silver-grey metallic material whilst...
  • Blog entry
      Thomas Edison had a superb mineral collection. He bought it in 1890 for $8000 (in today’s real money £185k).  It was the personal collection of the notable self-taught mineralogist, gemmologist & Vice President of Tiffany & Co, George...
  • 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
    Luigi Chiappino of Systematica called up a new mineral today - Albertiniite - to be added to the mineral database. This new species recently approved and published by the IMA is quite a straight forward iron(II) sulphite, formula - Fe2+(SO3)·3H2O. The...
  • Blog entry
    Congratulations to Chris Spiromitros of Greekrocks - he has just updated/upgraded his website. He is also the first Dealer to put his e-Rocks auctions on his website using our Page App.
  • 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
    Traditionally July and August are slower months for us; with both sellers and collectors away on holiday etc. This year we have been moving like an express train with the e-Rocks sellers adding 10000 new items in the 65 days from June 26th through to...
  • Blog entry
    Mineral photography continues to be well written up in many places, and no doubt will get a few mentions here from time to time; we do have one or two expert photographers selling and contributing to our pages. Personally we have photographing minerals...
  • Blog entry
    A lot earlier this morning George and his partner Sam became parents for the first time. Their little boy has been named Alexander Thomas Wrigley. There are two knock on effects, I have become a grandparent, and George is now currently covering his new...
  • Blog entry
    For most of last week George, Frank and I have been on a European road trip. We have recently bought a very large collection and went over to check it out. Because we have been away some of our shipping has been delayed, but George will be catching up...
  • Blog entry
    e-Rocks seller and field collector Tasos Tsinidis has recently been collecting these fine sanidine specimens at the locality, Kakourou Peak, Promachoi, Pella Prefecture, Central Macedonia, Greece. Tasos also kindly posted these photos of the collecting...
  • Blog entry
    Today being "set up" day proper the show was generally a bit quieter as people got on with the final preparations before opening tomorrow. George and I have been very busy meeting people and doing a lot of talking - a lot of talking!! In Hall A5 George...
  • Blog entry
    I spotted our third ever specimen of santanaite go under the virtual gavel the other day and in my tiny brain the name resolved to "santanaite, named for Carlos Santana legendary Mexican guitarist"! Of course santanaite is named for its type and only...
  • 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
    Ha Ha, here is a specimen of well crystallised hemimorphite from Bage Mine, Cromford, Derbyshire. According to the label the specimen was collected on 21 November, 1999 by George Fletcher. Bage mine is well known for such UK classics such as matlockite...
  • Blog entry
    We got our new xray diffractometer this week. It will come with a two dimensional detector which enables out of plane bragg peak measurement. This allows ultra fast measurements or extremely low concentrations of mineral samples. In 2018 we will offer a...
  • 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
    Late last year we reported on a new find of very fine large specimens of blödite & kröhnkite from Coronel Manuel Rodriguez Mine, Mejillones, Antofagasta Region, Chile. This locality is an old open cast working for the extraction of copper set in 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...
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    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
    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
    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
    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
    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
    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
    There has been a sensational recent find of fluorite in Connemara, County Galway, in the Republic of Ireland. TVM has been given exclusive access to the locality and has been given first refusal to the material released by the owners. Map of Connemara,...
  • 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
    The Christmas Holidays are nearly upon us and it is time to launch "Mark & Christian's Christmas Cracker 2015". This is the 9th annual cracker auction and this year Christian Rewitzer and I have filled it with some diverse and interesting minerals....
  • Blog entry
    Last Thursday we had a visit from Aamir Khan our good friend and supplier of all things from Pakistan/Afghanistan. Aamir is based in the UK and Pakistan and spends his equally between the 2 places. As usual he arrived with all kinds of minerals from his...
  • 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
    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
    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
    I spent most of my Monday in the office with camera. Found some interesting mineralogy on some specimens from Bou Azzer. Varied paragenesis with different chemistry. Great colours whatever!
  • 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
    Terlingua 1936 The Terlingua quicksilver district is a narrow, east-west area about 20 miles long, in the southern part of the Big Bend region of southwestern Texas. The cinnabar deposit was discovered by Comanche Native Americans, who used it for war-...
  • Blog entry
    A feature we have added to the new e-Rocks is a simple "add Mineral photo" posting tool. We wanted to give all collaborators on the site an option to post mineral photos (without going through a collection/full upload.) We have a simple quick option...
  • Blog entry
    You know you’re a rockhound when cries of “Froodite! I’ve got froodite” are heard echoing from the rafters. And before you step back in alarm, it’s not contagious
 it’s the name of a mineral. Please, allow me to make introductions. My husband Reiner and...
  • Blog entry
    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...
  • 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
    George and I have just picked up the collection of Dr Ernst Peter Uerpmann from deepest Spain. The collection of over 3,000 pieces has been in storage since 2002 when Peter moved from Germany to Alicante on his retirement; there are several interesting...
  • Blog entry
    This excellent shared photo from e-Rocks seller Edward Coghlan sort of sets the mood for the day at e-Rocks. The photo shows a group of explorers at Twll in Rhosydd Slate Mine, Wales standing in a large damp cavern with the light streaming in. We are up...
  • Blog entry
    As we push back on May and head into June a final quick blog with 2 bits of new information.   Nollmotzite (Mg[U5+(U6+O2)2O4F3]·4H2O) A new mineral, IMA approved pending publication due. Nollmotzite is the first naturally occurring uranium,...
  • Blog entry
    Salvatore Natalizia is continuing with the sale of his mineral collection today with another 107 items closing tonight. Some really excellent and quite large classic specimens are on offer - see photo gallery below, or follow the link to the auction....
  • Blog entry
    In the last month we have enlisted the support of 2 new dealers, both husband and wife teams based in South Africa. First we have Pierre and Riana Joubert of Namibian Brandberg Crystals and second we have Francois and Lorriane Retief of South Sky...
  • Blog entry
    I was asking Colleen Thomson about the latest from the Greenlaws project at the last Oxford show - she did say that an announcement was imminent and here it is, courtesy of Peter Ward on their Facebook page. "Hi everyone... We are delighted to announce...
  • 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
    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
    Saturday is the last day of our Munich roundabout tour for 2017. It is also the first public day and weekend crowds descend upon the place. We only planned to be there for 1/2 a day finishing off business and seeing the last few people on our list...
  • Blog entry
    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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    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
    Please be aware of our updated TVM Terms & Conditions before bidding or buying anything TVM offers on e-Rocks. There is also a link showing the details below on each and every item listed. Our Terms and Conditions - 31 December 2020 RESPONSE TIME: We...
  • Blog entry
    Calamaite is the third natural Ti dominant sulfate mineral known yet. Russian scientists recognized this phase, occuring as filigrane colourless sprays, while doing some analytical investigations in a matrix of coquimbite / römerite. Type locality is...
  • Blog entry
    Jasun and Mandy McAvoy, AKA Mineralman999 have been recently showing off this fine and historic gem topaz crystal. The crystal itself is a well terminated gem specimen from Murzinka, Ekaterinburg, Middle Urals, Russia and at 3.1cm x 2.7cm x 2.5cm it is...
  • 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...
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    For those who don't already know I have been an avid collector of antique bottles for nearly as long as I have been interested in minerals. Time permitting I like to keep my interests alive by visiting the various "bottle shows" that run here in the UK...
  • Blog entry
    Today was the first ever Leyburn show up there in the Yorkshire Dales. Hosted by Tennant's Auctioneers there was an auction of minerals alongside the show at their fantastic premises. In the picture is one of the lots as described in the catalogue; "A...
  • 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, KleinrĂŒckerswalde, in the Erzgebirge Mountains in...