Nevadaite is a rare phosphate mineral with a chemical formula[3] of

Cu2Zn0.02V3+0.98Al1.15Al8P7.9O32F8.37(OH)1.63(H2O)21.65

Characteristics

Nevadaite is a pale-green to turquoise colored mineral belonging to the phosphate group. It exhibits a radial crystal habit consisting of prismatic crystals covering areas up to 2 cm. It has a pale-blue streak, a vitreous luster, and is not fluorescent. Nevadaite is in the orthorhombic crystal system and displays conchoidal fracture.[2]

Location

Hazy aerial view of Gold Quarry mine

Nevadaite was first discovered in the Gold Quarry mine near the town of Carlin, Eureka County, Nevada.[4] The unique conditions and amounts of phosphate, vanadate, arsenate, and uranate in this area led to the formation of two new minerals; one being nevadaite and the other being goldquarryite. The Gold Quarry mine has been operated by The Newmont Mining Corporation since 1985 for the extraction of Carlin-type gold deposits.[3]

Nevadaite was discovered in February 1992 by Martin C. Jensen and was approved by the International Mineralogical Association in 2002.[3] It is also found in a copper mine in Kyrgyzstan.

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 "Nevadaite Mineral Data". webmineral.com. Retrieved 2015-12-03.
  3. ^ a b c "Nevadaite". Canadian Mineralogist. 42: 741–752. 2004.
  4. ^ "Nevadaite: Nevadaite mineral information and data". www.mindat.org. Retrieved 2015-12-03.
Allikas: http://en.wikipedia.org/wiki/Nevadaite
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