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    • Rutile With Hematite
      JWM1044404
      Rutile With Hematite
      Novo Horizonte, Bahia, Brazil
      Size: 
      4.3 × 3.5 × 3 cm
      Small miniature (3-4.5 cm)
      Description: 
      An aesthetic specimen with sparkling golden needle-like crystals of rutile coming off a cluster of lustrous grey-black hematite crystals...
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    • Native Iron
      JWM1044461
      Native Iron
      Khungtukun Massif, Krasnoyarsk Krai, Russian Federation
      Size: 
      5.7 × 3.8 × 0.66 cm
      Miniature (4.5-7 cm)
      Description: 
      A sawn and polished slice of rare telluric native iron disseminated through the black basalt. Sawn and polished on two sides with a natural...
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    • Grossular
      JWM1044422
      Grossular
      Mono County, California, United States of America
      Size: 
      10.7 × 7.4 × 6.4 cm
      Cabinet (10-18 cm)
      Description: 
      A specimen with a vug filled with deep red-brown grossular crystals that have a high luster. Garnets are on the specimen all round with...
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    • Morganite
      JWM1044273
      Morganite
      Minas Gerais, Brazil
      Size: 
      3.5 × 3.1 × 3.1 cm
      Small miniature (3-4.5 cm)
      Description: 
      An unusual terminated gemmy light tan beryl with muscovite inclusions. From an old collection. Actual shipping cost will be calculated and...
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    • Native Gold
      JWM1044953
      Native Gold
      Unknown Specific Locality, Colorado, United States of America
      Size: 
      5.1 × 3 × 1.8 cm
      Miniature (4.5-7 cm)
      Description: 
      A quartz specimen loaded with visible micro crystalline gold throughout all the nooks and crannies of this specimen. The gold is a very...
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    • Tellurium
      JWM1044696
      Tellurium
      Boulder County, Colorado, United States of America
      Size: 
      3.8 × 2.8 × 1.6 cm
      Small miniature (3-4.5 cm)
      Description: 
      Grey tellurium crystals on matrix with sylvanite and some golden calaverite. From an older collection with an old label. Actual shipping...
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    • Graphite
      JWM1045050
      Graphite
      Seathwaite Graphite Mine, Borrowdale, Cumbria, United Kingdom
      Size: 
      5.5 × 4.8 × 3 cm
      Miniature (4.5-7 cm)
      Description: 
      Graphite from the Seathwaite Mine is the purest and finest quality in the world. Seathwaite is one of the only two known localities...
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    • Clinothulite Fluorite Phlogopite
      JWM1044271
      Clinothulite Fluorite Phlogopite
      Inyo County, California, United States of America
      Size: 
      8.4 × 8.4 × 5.5 cm
      Small cabinet (7-10 cm)
      Description: 
      A specimen with a vug of pink clinothulite crystals, with purple fluorite. There is silvery green phlogopite mica in areas on the specimen...
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    • Tourmaline
      JWM1044954
      Tourmaline
      Haapaluoma Pegmatite, Peräseinäjoki, Seinäjoki, South Ostrobothnia, Finland
      Size: 
      7.7 × 5.1 × 4.3 cm
      Small cabinet (7-10 cm)
      Description: 
      Tourmaline: Variety Elbaite. Cranberry red-purple elbaite crystals with darker centers, in a quartz pegmatite matrix. Nice exposure of the...
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    • Beryl
      JWM1044956
      Beryl
      Haddam, Middlesex County, Connecticut, United States of America
      Size: 
      10 × 5.6 × 3 cm
      Cabinet (10-18 cm)
      Description: 
      Beryl: Variety Gold Beryl. A yellow beryl crystal with hexagonal crystal form. The specimen has muscovite mica and great color that is...
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    • Native Copper
      JWM1044959
      Native Copper
      White Pine Mine, White Pine, Ontonagon County, Michigan, United States of America
      Size: 
      9.6 × 6 × 1.2 cm
      Small cabinet (7-10 cm)
      Description: 
      A dramatic formation of dendritic copper crystals. The crystals are sharp and well formed. The specimen is a floater, and has a great...
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    • Calaverite
      JWM1044712
      Calaverite
      Cripple Creek District, Teller County, Colorado, United States of America
      Size: 
      6.5 × 4.3 × 3.9 cm
      Miniature (4.5-7 cm)
      Description: 
      A very rich specimen with bands of golden calaverite, and single calaverite crystals all around the specimen. Crystals on the purple...
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    • Kotulskite Pentlandite Pyrite
      JWM1044400
      Kotulskite Pentlandite Pyrite
      Key West Mine, Whitney Pocket Basin, Bunkerville, Clark County, Nevada, United States of America
      Size: 
      5.1 × 3.4 × 0.4 cm
      Miniature (4.5-7 cm)
      Description: 
      The Key West Mine was started in 1965 and closed in 1999. Its main ores were rare elements such as kotulskite. The ores were associated...
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    • Ulexite
      JWM1045047
      Ulexite
      Boron, Kern County, California, United States of America
      Size: 
      6.5 × 4.4 × 3.5 cm
      Miniature (4.5-7 cm)
      Description: 
      An exceptional thick slab of ulexite, polished on both the front and back. It is sometimes is called TV Rock/Stone due to its unusual...
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    • Rutile
      JWM1044458
      Rutile
      Hiddenite, Alexander County, North Carolina, United States of America
      Size: 
      14.6 × 7.7 × 2 cm
      Cabinet (10-18 cm)
      Description: 
      Measurement is for case of rutiles. A collection of more than forty rutile crystals displayed in a plastic case. The largest crystal is 1.3...
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    • Gold
      JWM1045051
      Gold
      Central Kyzylkum Region, Navoiy Viloyati, Uzbekistan
      Size: 
      2.4 × 2.2 × 1.2 cm
      Thumbnail (1-3cm)
      Description: 
      A specimen rich with gold crystals, galena and probably molybdenum from this mine which is the largest open pit gold mine. The specimen has...
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    • Corundum
      JWM1044452
      Corundum
      Kenya
      Size: 
      1.2 × 0.9 × 0.8 cm
      Thumbnail (1-3cm)
      Description: 
      Corundum: Variety Ruby. A sharp, hexagonal ruby crystal which has a nice purple-red color. The specimen is translucent and highly...
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    • Tourmaline
      JWM1045052
      Tourmaline
      Aracuai, Minas Gerais, Brazil
      Size: 
      1.9 × 1.4 × 1.3 cm
      Thumbnail (1-3cm)
      Description: 
      Terminated crystals with minor quartz crystals. A great rubellite locality specimen with nice color! Actual shipping cost will be...
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    • Limestone
      JWM1045049
      Limestone
      Solnhofen, Weißenburg-Gunzenhausen District, Middle Franconia, Bavaria, Germany
      Size: 
      12.9 × 11.8 × 0.4 cm
      Cabinet (10-18 cm)
      Description: 
      A fossil--Libelulium Longialatum--dragon fly in limestone from the famous Solnhofen limestone deposit. It is from the Upper Jurassic period...
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    • Fluorapatite Albite Chlorite
      JWM1045048
      Fluorapatite Albite Chlorite
      Göscheneralp, Göschenen Valley, Reuss Valley, Uri, Switzerland
      Size: 
      6.8 × 3.6 × 2.2 cm
      Miniature (4.5-7 cm)
      Description: 
      Tabular pink/lavender colored fluorapatite crystals with white albite crystals and green chlorite. From this classic Switzerland locality...
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    • Aquamarine
      JWM1044963
      Aquamarine
      Minas Gerais, Brazil
      Size: 
      5.9 × 3.1 × 2.5 cm
      Miniature (4.5-7 cm)
      Description: 
      A translucent hexagonal aquamarine crystal with gem clear areas. The specimen has two darker zone lines near the top of the flat...
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    • Synthetic Mica
      JWM1044403
      Synthetic Mica
      Micalex Corporation of America, Clifton, New Jersey, United States of America
      Size: 
      7.4 × 6.4 × 3.8 cm
      Small cabinet (7-10 cm)
      Description: 
      Synthetic Mica. This is the first and only specimen of mycalex which is glass bonded mica. Is is one of the oldest high performance...
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    • Gold
      JWM1044710
      Gold
      Farncomb Hill, French Gulch, Breckenridge, Summit County, Colorado, United States of America
      Size: 
      2.7 × 1.2 × 0.3 cm
      Thumbnail (1-3cm)
      Description: 
      A thin sheet of microcrystalline gold with a tiny amount of matrix. The specimen has a rich golden yellow color. Old label states specimen...
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    • Rutile
      JWM1044711
      Rutile
      Lochan na Lairige, Perthshire, Scotland, United Kingdom
      Size: 
      5.7 × 3.6 × 2.7 cm
      Miniature (4.5-7 cm)
      Description: 
      Lustrous and translucent dark red rutile crystals on green clinochlore muscovite. A good rutile specimen for this obscure locality. Former...
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    • Andradite
      JWM1044462
      Andradite
      New Idria District, San Benito County, California, United States of America
      Size: 
      7.6 × 6.1 × 4.3 cm
      Small cabinet (7-10 cm)
      Description: 
      Andradite: Variety Melanite. A specimen that is richly covered on the front with highly lustrous, jet black colored, dodecahedral crystals...
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    • Sanidine
      JWM1044679
      Sanidine
      Benono, Mahasoa East, Betroka, Anosy, Madagascar
      Size: 
      2.8 × 2.6 × 1.6 cm
      Thumbnail (1-3cm)
      Description: 
      A light yellow, gem clear, facet grade sanidine feldspar specimen with distinct crystal faces. Contact area on back. Sanadine is a rare...
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    • Danburite
      JWM1044670
      Danburite
      Dalnegorsk, Primorskiy Kray, Russian Federation
      Size: 
      3 × 2 × 0.9 cm
      Small miniature (3-4.5 cm)
      Description: 
      A gem clear and terminated danburite crystal on matrix. Older material. Danburite of this quality is rare from Dal'Negorsk. Mounted in a...
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    • Wurtzite
      JWM1044669
      Wurtzite
      Merelani Hills, Arusha Region, Tanzania (United Republic)
      Size: 
      1.9 × 0.9 × 0.8 cm
      Thumbnail (1-3cm)
      Description: 
      A translucent red-brown crystal of wurtzite. From the 2013 find, which yielded from a single pocket what are surely the best of this...
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    • Platinum With Gold
      JWM1044430
      Platinum With Gold
      Konder Massif, Aldan Shield, Khabarovsk Krai, Russian Federation
      Size: 
      0.45 × 0.32 × 0.31 cm
      Micromount (under 1cm)
      Description: 
      Weight: 2.0 carat. An exceptionally rare combination specimen of an isoferro-platinum crystal that is covered in gold. Actual shipping cost...
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    • Native Gold
      JWM1044688
      Native Gold
      Sacramento County, California, United States of America
      Size: 
      6.6 × 4.8 × 3.7 cm
      Miniature (4.5-7 cm)
      Description: 
      From a 2022 find. Beautiful crystals of gold on the brown gossan and quartz matrix. The longest crystal group measures 1.1 cm. There are...
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    Page 1 of 30 results