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Molybdenite, Silvery Hexagonal Crystals in Quartz and Mica Rock Matrix Mined in Quebec Geology Specimen for your rock and mineral collection

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Hematite, Rutile Cavradi gorge, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland 5.95 mm Hematite crystal with red Rutile crystals. Collection & Photo Matteo Chinellato

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Vintage Conastoga Cast Iron Calcium Carbide Big Bang 15FC Artillery Field Cannon by SpecialHonorDesigns on Etsy

NATIVE GOLD Minerals from El Infierno Mine, Santa Elena de Uairen, Bolivar, Venezuela, South America at Crystal Classics

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Absolutely stunning and very rare. This 5.57 carat, flawless green Tanzanite bursts with sparkle. A wonderful deep green with a hint of blue. Strong violet, green and blue trichroic colors in the dichroscope. A real collector's piece.

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A vintage Guys Dropper carbide caving lamp from the early 1900s. Brass, made in USA, measures 4" tall. Originally used by miners, they would mix water and calcium carbide rocks to create acetylene gas which was lit to provide light in the pitch black caves and mines.