🚨Bidding closes 11/20/2025🚨 Bid on MineralAuctions.com! Calcite twin with Realgar and Picropharmacolite Jiepaiyu Mine, Shimen deposit, Shimen Co., Changde, Hunan, China 5.7 x 4.4 x 3.0 cm A Chinese classic from the 1990s, seldom seen nJiepaiyu Mine, Shimen deposit, Shimen Co., Changde this is one of the more striking realgar-calcite combination pieces in its size class from this deposit that we’ve seen. The 5.4 cm calcite is absolutely water clear, so clear in fact, you can see tufts of picrop
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🚨Bidding closes 11/20/2025🚨 Bid on MineralAuctions.com! Calcite twi…
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🚨Bidding closes 10/30/2025🚨 Bid at https://www.mineralauctions.com/items/clinochrysotile-rare-arizona-117008! Clinochrysotile (rare Arizona) Globe-Miami Dist., Gila Co., Arizona, USA 8.2 x 6.7 x 4.6 cm Clinochrysotile is rare from any Arizona locality and is extremely RARE from the well-known Globe-Miami District. Intensely chatoyant, multi-hued, fibrous lathes with a golden sheen form a sculptural and blocky 360-degree specimen. MINDAT lists the species for the district, but there are no phot
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🚨Bidding closes 11/22/2025🚨 Bid on MineralAuctions.com! Calcite (doubly-terminated) on “bent” Stibnite Banpo Mine, Dushan County, Qiannan, Guizhou, China 11.3 x 2.3 x 1.2 cm A rarely seen specimen from the lesser-known Banpo Mine in Guizhou, China. We’ve only had a handful of good quality display specimens to offer from this mine in the past, and this piece is certainly one of the showiest examples you’ll find on the market. This piece features an elongated, thin, prismatic, silvery, metallic
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🚨Bidding closes 11/22/2025🚨 Bid on MineralAuctions.com! Calcite (dou…
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🚨Bidding closes 11/08/2025🚨 Bid on MineralAuctions.com! Cuprite (excellent crystals) Mashamba West Mine, Sicomines copper-cobalt project, Mutshatsha, Lualaba, DR Congo 3.2 x 2.2 x 1.9 cm Please note: This specimen is labeled as coming from the Kipushi Mine, but I cannot find a single example of such superbly crystallized cuprite from this mine, and in all likelihood, this piece is from the Mashamba West Mine, like so many other top tier cuprites from DR Congo. This gorgeous toenail featuring a
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🚨Bidding closes 11/08/2025🚨 Bid on MineralAuctions.com! Cuprite (ex…
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🚨Bidding closes 11/6/2025🚨 Bid on MineralAuctions.com! Galena on Dolomite (classic locale) Joplin Field, Jasper Co., Missouri, USA 12.5 x 11.5 x 7.9 cm Majestic and highly contrasting combination of inter-connected and well formed, metallic gray galena cubes, up to 3cm, draping up and over the underlying forest of light pink saddle dolomite blades on this Tri-State classic from finds of the 1930s-60s. Several of the cubic crystals exhibit slightly modified corners and subtle stepped growth fac
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🚨Bidding closes 11/6/2025🚨 Bid on MineralAuctions.com! Galena on …
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🚨Bidding closes 11/29/2025🚨 Bid on MineralAuctions.com! Dioptase with Plancheite and Mottramite (rare locality specimen) Sanda Hills Occurrences, Mindouli, Mindouli District, Pool Department, Republic of the Congo 6.2 x 4.6 x 2.8 cm This is a fairly hard to find combo from the Sanda Hills locality in Republic of the Congo (Brazzaville) featuring excellent, sharp, lustrous, rich emerald-green colored trigonal crystals of dioptase measuring up to 1.2 cm, sitting on attractive blue plancheite alo
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🚨Bidding closes 11/29/2025🚨 Bid on MineralAuctions.com! Dioptase wi…
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We’re LIVE at the Tucson Gem and Mineral Show® 💎✨ Now through February 15 at the Tucson Convention Center, join our Fine Minerals Department as we showcase exceptional specimens from our three upcoming Signature® Auctions. See these world-class minerals up close, connect with our specialists, and get ready to bid on some of the most exciting pieces of the season. 🎉 GIVEAWAY TIME 🎉 Enter for a chance to win $200 in bidding credit at Heritage Auctions! How to Enter: ✔️ Follow our Instagram ✔️ L
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No Reserve Gemstone Auctions Online | Gem Rock Auctions
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