Bismuth is a brittle, pinkishsilver metal that is stable in air and water but reacts with some acids. Bismuth, shares a property with water and gallium, it is less dense as a solid than as a liquid. It conducts heat and electricity poorly. Bismuth has a number of uses, including alloys (usually with iron), pharmaceuticals and cosmetics.

CHFLO257 Fluorite Request Information Miniature, x x cm Yaogangxian Mine, Hunan Province, China. This is a very rare combination from the mine, with a deep purple fluorite (perfect and complete, mind you) richly included by acicular crystals of the rare species bismuthinite.

Previous work by Voudouris et al. suggested that the association between bismuthinite and native gold in the goldbearing galena ores within the Clemence deposit may have been caused by the sulfidation of maldonite in response to an increase in f S 2, and that the presence of sulfarsenide minerals associated with native gold and bismuthinite ...

x x cm. Bismuthinite is a rare bismuth sulfide, and good examples from the Germania Consolidated Mine are certainly few and far between. This piece features metallic, leadgrey colored crystals of bismuthinite sitting on quartz matrix. It should be noted that the label accompanying this piece states that this locality was the first ...

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Bismuthinite is an ore of the metal bismuth, but is found mostly in complex mixtures of ores of silver, cobalt, gold, etc., and the bismuth is extracted as a byproduct, which sells at about a pound. It is used in making easily fusible alloys (safety plugs), and in a number of medical and chemical substances. Molybdenite. MoS2.

Gold is closely associated with native bismuth and bismuthinite. Similar to the distribution of native bismuth, native gold also occurs into two groups. The first group of native gold coexists with bismuthinite and/or native bismuth in mineral fractures and/or intergranular spaces.

Bismuthinite is an uncommon bismuth mineral that forms in interesting crystal habits. It generally forms in bismuth deposits, and may even form in together with Native Bismuth.. Bismuthinite is structurally similar to Stibnite, with a similar appearance, but they occur in different environments, and Stibnite can form in much larger and robust crystals.

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The largest shown in the photos is 4mm. The rock is composed of classic Homestake mineralogy with Arsenopyrite crystals, Quartz and chloritic Cummingtonite schist. ... Arsenopyrite matrix. This is a good study specimen with Gold associated directly with Arsenopyrite. ... The large silvery group to is probably the Bismuthinite, the ...

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6085 Bismuthinite partially pseudomorphed to Bismutite. Gjellebekk Mine, Gjellebekk, Lierskogen, Lier, Buskerud, Norway Bi 2 S 3, Bi 2 O 2 (CO 3) Henkel x 7 x 5 cm 50. 5969 Bismuthinite, Scheelite, probable Bismutite and Siderite. Costabonne Mines, PratsdeMollola Preste, PyreneesOrientales, Occitanie, France

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boulangerite (Fig. 20). Gold is remarkably abundant in this sample and occurs in triple junctions forming to the shape of the pyrite grains and is often intergrown with bismuthinite that exhibits iridescence (Fig. 20); rarely is gold found within the pyrite grains. Boulangerite is found in chalcopyrite but more rarely is found on its own in

The Ni–Bi–Au association in the Clemence deposit consists of initial deposition of pyrite and arsenopyrite followed by an intergrowth of native goldbismuthinite and oscillatory zoned gersdorffite. The zoning is related to variable As, Ni, and Fe contents, indicating fluctuations of arsenic and sulfur fugacity in the hydrothermal fluid.

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