Cesbronite
(repeating unit)Cu3Te6+O4(OH)4 IMA symbol Ces[1] Strunz classification 4.JN.15 Dana classification 34.7.2.1 Crystal system Orthorhombic Crystal class Dipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m) Space group Pbcn Unit cell a = 8.624, b = 11.878
c = 5.872 [Å], Z = 2 Identification Color Green Cleavage poor on {010}, good on {021} Tenacity Brittle Mohs scale hardness 3 Luster Subadamantine Streak Green Diaphaneity Translucent Specific gravity 4.45 (measured) Optical properties Biaxial (+) Birefringence δ = 0.149 Pleochroism Distinct, various shades of green 2V angle 72o (calculated) Ultraviolet fluorescence None Solubility Soluble in HCl and HNO3. Insoluble in water References [1][2][3][4][2]
H-M symbol: (2/m 2/m 2/m)
c = 5.872 [Å], Z = 2
Cesbronite is a copper-tellurium oxysalt mineral with the chemical formula Cu3Te6+O4(OH)4 (IMA 17-C). It is colored green and its crystals are orthorhombic dipyramidal. Cesbronite is rated 3 on the Mohs Scale.[3] It is named after Fabien Cesbron (born 1938), a French mineralogist.[4]
Occurrence
It was first found in the Bambollita ("La Oriental") mine in the Mexican state of Sonora. It also occurs in the Tombstone District of Cochise County, Arizona and the Tintic District of the East Tintic Mountains, Juab County, Utah.[5] It is often associated with argentian gold, teineite, carlfriesite, xocomecatlite, utahite, leisingite, jensenite and hematite.[6]
See also
References
- ^ 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.
- ^ Mineralienatlas
- ^ Webmineral entry
- ^ Williams, Sidney A. (1974). "Cesbronite, a new copper tellurite from Moctezuma, Sonora" (PDF). Mineralogical Magazine. 39 (307): 744. Bibcode:1974MinM...39..744W. doi:10.1180/minmag.1974.039.307.02. S2CID 129501305. Archived from the original (PDF) on 2016-05-27. Retrieved 2016-09-20.
- ^ Mindat.org Cesbronite
- ^ "Handbook of mineralogy" (PDF). Retrieved 2016-09-20.
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