Zanazziite is a mineral, a complex phosphate with the formula Ca2(MgFe)(MgFeMnAl)4Be(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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General Information:
Chemical Formula:
(Ca,Mn)2(Mg,Fe)(Mg,Fe++,Mn,Fe+++)4Be4(PO4)6(OH)4·6(H2O)
Environment:
Pegmatitic environment. Resembles roscherite.
IMA Status:
Approved IMA
Locality:
Lavra da Ilha pegmatite, near Taquaral, in northeastern Minas Gerais, Brazil.
Name Origin:
Named after Dr. Pier F. Zanazzi of the Universita degli Studi di Perugia, in recognition of his studies of the crystal structures and crystal chemistry of minerals.
Physical Properties:
Cleavage:
[100] Good, [010] Distinct
Color:
pale olive green or dark olive green.
Density:
2.76
Diaphaniety:
Transparent to translucent
Habits:
Bladed - Aggregates of thin lath-like crystals (e.g. kyanite)., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., Columnar - Forms columns
Hardness:
5 - Apatite
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Pearly
Streak:
white
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