Bismutite or bismuthite is a bismuth carbonate mineral with formula Bi2(CO3)O2 (bismuth subcarbonate). Bismutite occurs as an oxidation product of other bismuth minerals such as bismuthinite and native bismuth in hydrothermal veins and pegmatites.[3] It crystallizes in the orthorhombic system and typically occurs as earthy to fibrous masses.[2]

It was first described in 1841 for an occurrence in Saxony.[2]

The term bismuthite has been used in the past for bismuthinite.[6]

References

  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ a b c Webmineral
  3. ^ a b Mindat
  4. ^ Handbook of mineralogy
  5. ^ Grice, Joel D., A Solution to the Crystal Structures of Bismutite and Beyerite, The Canadian Mineralogist, Vol. 40, pp. 693–698 (2002)
  6. ^ Chisholm, Hugh, ed. (1911). "Bismuthite" . Encyclopædia Britannica. Vol. 4 (11th ed.). Cambridge University Press. p. 11.

See also

Allikas: http://en.wikipedia.org/wiki/Bismutite
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