Zanazziite

From Wikipedia, the free encyclopedia

Zanazziite
Category Phosphate Mineral
Chemical formula Ca2(Mg,Fe)(Mg,Fe,Mn,Al)4Be4(OH)4(PO4)6·6H2O
Identification
Molecular Weight 1,044.11 gm
Color Pale to dark olive green
Crystal habit Bladed, Columnar, Prismatic
Crystal system Monoclinic
Cleavage Good on the [100], Distinct on the [010]
Fracture Brittle
Mohs Scale hardness 5
Luster Vitreous - Pearly
Optical Properties Biaxial (+)
Dispersion r < v
Ultraviolet fluorescence None
Streak white
Density 2.76
Diaphaneity Transparent to Translucent
References [1][2]

Zanazziite is a mineral, a complex phosphate with the formula Ca2(Mg,Fe)(Mg,Fe,Mn,Al)4Be4(OH)4(PO4)6·6H2O. Discovered in 1990 in Brazil, it is named after PF Zanazzi, Professor of Mineralogy, Perugia, Italy. Its color is pale to dark olive-green.

[edit] See also

[edit] References

Languages