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Hammer Mill

Hammer Mill is specially designed for coarse powder grinding and small size of sand production. Hammer Mill adopts some principles of crusher. Because of its special design,…

Ball Mill

Ball mill has been used in many industries for a long time, the technology is quite mature already. But there are still some problems, such as, lots of investors expressed…

MTM Series Trapezium Mill

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LM Vertical Roller Mill

Vertical Roller Mill is our newly-launched product which is applied as a solution to the technical issues such as low output and high energy consumption in the ordinary industry.…

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MTW Series European Trapezium Grinding Mill (MTW Raymond Mill) is developed on the basis of our experts' long-term R & D experience, structure & performance analyses of traditional…

Green garnet demantoid official miners "Demantoid poldnevskoy"

The Poldnevaya mine lies about 7 km to the north of Korkodin. Both operations are working on primary demantoid deposits with machinery. Together the two mines supply the majority of Russian demantoid. Another impressive Russian demantoid was a 6.73 ct stone carried by Constantin Wild at the GJX show.

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and Gemstone Facet & Cab Rough for sale. We are mining and hunting specimens all the time. If you want something special; just send me and email. We understand faceting material from Namibia (Tourmaline, demantoid, etc.), very well. Hobby faceters / cutters, private collectors and dealers welcome to contact us for further information.

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Comments. Demantoid was discovered in Russia in the early 19th century. In 1854, the noted mineralogist Nils Gustaf Nordenskiöld identified this gem as a variety of andradite garnet.These stones had such exceptional brilliance and dispersion or "fire" that they inspired Nordenskiöld to name demantoid after its "diamond-like" appearance. In fact, this garnet has greater brilliance and ...

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Demantoid is the rarest and the most valuable member the garnet group. The color spectrum varies from a golden honey-colored to a vivid green. The dispersion (0.057) is higher than that of diamond (0.044). Dermatoid garnets look best in daylight. Because of its high dispersion has rainbow-coloured flashes of light in the stone.

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Bulk wholesale minerals and mineral specimens sold by the flat or by the batch for mineral dealers, online resellers, hobbyistys etc. Everything of this page is priced at true wholesale price and individual specimens can be comfortably resold with at least a 2x – 10x markup.

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Garnet Rough is popular for professionals as well as amateur cutters as the rough represents good value for a clean stone-faceted or cab. It is easy to cut because the color is not dependent on the orientation of the rough. Further Reading. Colorful Garnet Gemstones To Suit Everyone's Taste ; Demantoid Garnet Information

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Erongo Minerals

gems of east africa - natural untreated gemstones. we are a london, united kingdom based, fine faceting rough, faceted stone, and crystals dealer, buying from miners at source in east africa (whom we have known for decades and built long term relationships with) and selling selected, top quality stones, worldwide at mine direct prices to everyone.

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Jul 07, 2020· mineralminers.com: your on-line link direct to the mines and lapidary shops for mineral specimens, crystals, gemstones, jewelry, spheres & crystal balls, facet rough and lapidary rough & handcrafted mineral gifts.

Green garnet demantoid official miners "Demantoid poldnevskoy"

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According to Reif, the original rough weighed approximately 46 ct—about 9 grams—making the yield a little over 25%. This is an exceptionally large gem for Namibia's Green Dragon mine, where the bulk of production is suitable for small calibrated gems. Namibian demantoid was first discovered in the 1990s (Fall 1997 GNI, pp. 222–223).

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Buy Garnet Rough. Garnet Rough is popular for professionals as well as amateur cutters as the rough represents good value for a clean stone-faceted or cab. It is easy to cut because the color is not dependent on the orientation of the rough. Further Reading. Colorful Garnet Gemstones To Suit Everyone's Taste

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All bulk stones are sold by weight. Mostly 1 lb lots. The average sizes and counts will very . We are bulk seller and you should not depend on counts, but weights because that is what our prices reflect. Sold by weight, not count.

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Mix Gemstone Amethyst Amber / Copal Black Onyx Black Spinel Carnelian Citrine Fire Opal Green Amethyst Green Onyx Garnet Hessonite Garnet More Rough Pieces By Weight 0.5 - 1 Grams 1 - 1.5 Grams 1.5 - 3 Grams 3 - 5 Grams 5 - 9 Grams 9 - 15 Grams

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PARTY EXTRAVAGANZA TREASURE BOX: $170. Especially for gem mining parties! We overload this box with more than 15,000 carats of colorful gems that kids (and grownups!) love to find, including purple amethysts; rose quartz; green, pink, yellow, blue, and purple fluorite; smoky topaz; red garnets, blue kyanite, pearly moonstone in peach, cream, gray, and green; orange calcite; amber citrine; and ...

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NATURAL DEMANTOID GARNET ROUGH SPECIMEN GREEN DRAGON MINE 2.91 CARATS NAMIBIA. $7.99. 0 bids. $3.50 shipping. Ending Oct 11 at 5:48PM PDT 4d 4h. Watch. 8.46 Ct Natural Demantoid Garnet Green Unheated Rough. ... Natural Demantoid Garnet Rough 5.42 Ct Fancy Shape 100 % Unheated From Russian . $130.19.

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Wholesale Rough Gems. Rough gemstones including wholesale bulk orders. Minerals, crystals, rocks, quartz rose, clear crystal, calcite all colours, rubies, emeralds, tourmaline. We offer one of the most extensive inventories in Canada. Rough minerals conveniently sorted for tumbling, collectors or healers. Perfect for displays in rock shops, new ...