Zharchikhite

(repeating unit)AlF(OH)2IMA symbolZha[1]Strunz classification3.AC.05Crystal systemMonoclinic, pseudo-orthorhombicIdentificationColourColorlessCrystal habitElongated prismatic cryatals, massive, drusy coatingsCleavagePerfect (010)TenacityVery brittleMohs scale hardness4.5LusterVitreousDiaphaneityTransparentSpecific gravity2.81Optical propertiesBiaxial (-)Refractive indexnα = 1.532 nβ = 1.552 nγ = 1.567Birefringenceδ = 0.0352V angle80° (calculated)References[2][3]

Zharchikhite is a halide mineral, a hydroxyl fluoride of aluminium; formula AlF(OH)2. It forms colourless, transparent crystals. Discovered in 1968, it is named after its original locality, the Zharchinskoya Deposit, which is in Buryatia, Russia.

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. ^ Mindat.org - Zharchikhite
  3. ^ Handbook of Mineralogy - Zharchikhite
  • Webmineral - Zharchikhite


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