Zanazziite
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Zanazziite | |
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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.
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