Albrechtschraufite Explained

Albrechtschraufite
Formula:	Ca4Mg(UO2)2(CO3)6F2·17H2O
Imasymbol:	Asf
Molweight:	1,428.98 g
Color:	Yellow green
Fracture:	Conchoidal
Mohs:	2–3
Luster:	Vitreous
Density:	2.6 g/cm3

Albrechtschraufite (IMA symbol: Asf^[1]) is a very rare complex hydrated calcium and magnesium-bearing uranyl fluoride carbonate mineral with formula Ca₄Mg(UO₂)₂(CO₃)₆F₂·17H₂O.^{[2] [3] [4]} Its molar weight is 1,428.98 g, color yellow-green, streak white, density 2.6 g/cm³, Mohs hardness 2–3, and luster is vitreous (glassy). It is named after Albrecht Schrauf (1837–1897), Professor of Mineralogy, University of Vienna. Its type locality is Jáchymov, Jáchymov District, Krušné Hory Mountains, Karlovy Vary Region, Bohemia, Czech Republic.

See also

• List of minerals
• List of minerals named after people

References

1. Warr. L.N.. 2021. IMA-CNMNC approved mineral symbols. Mineralogical Magazine. 85. 3. 291–320. 10.1180/mgm.2021.43. 2021MinM...85..291W. 235729616. free.
2. http://www.mindat.org/min-97.html Mindat
3. http://webmineral.com/data/Albrechtschraufite.shtml Webmineral
4. http://www.handbookofmineralogy.org/pdfs/albrechtschraufite.pdf Handbook of Mineralogy