Altaite

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Altaite
Altaite-170094.jpg
Silvery veins and flecks of altaite throughout the matrix from the Hilltop Mine, Organ District, Doña Ana County, New Mexico (size: 3.5 × 2.9 × 1.9 cm)
General
Category Telluride mineral
Formula
(repeating unit)
PbTe
IMA symbol Alt [1]
Strunz classification 2.CD.10
Crystal system Isometric
Crystal class Hexoctahedral (m3m)
H-M symbol: (4/m 3 2/m)
Space group Fm3m
Identification
Formula mass 334.8 g/mol
Colortin white to yellowish white; tarnishing to bronze yellow
Crystal habit include cubic and octahedral crystals; but much more commonly found in massive and granular forms
Cleavage perfect in three directions forming cubes
Fracture Uneven
Mohs scale hardness2.5 – 3
Luster metallic
Streak Black
Specific gravity 8.2 – 8.3
References [2] [3]

Altaite, or lead telluride, is a yellowish white mineral with an isometric crystal structure. Altaite is in the galena group of minerals as it shares many of properties of galena. Altaite has an unusually high density for a light-colored mineral. Altaite and other rare tellurides are classified in the sulfide mineral class (Dana classification).

Altaite was discovered in 1845 in the Altai Mountains. Besides these mountains altaite can also be found in Zyryanovsk, Kazakhstan; the Ritchie Creek Deposit in Price County, Wisconsin; the Koch-Bulak gold deposit in Kazakhstan; Moctezuma, Mexico; and Coquimbo, Chile among other locations.

See also

Related Research Articles

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Commoner, Zimbabwe is a populated place and a place where highly deformed and folded quartz reef structure gold ore is extracted. It is about 50 km west-southwest of Kadoma by air and 68 km by road. It is 67 km north-west of Kwekwe by air and 96 km by road. It is in Zhombe Kwekwe District, Midlands Province, Zimbabwe. Commoner is not to be confused with Commoner Gold Mine near Kadoma in Mashonaland West Province.

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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 data with locations
  3. Webmineral data