Eosphorite, Zanazziite
Posted by: Raymond McDougall on 11.21.2020 | Filed under:

Eosphorite, Zanazziite

Specimen # 102440
Mineral: Eosphorite, Zanazziite
Location: Ilha Claim, Taquaral, Itinga, Minas Gerais, Brazil
Size: 4.3 x 2.9 x 2.8 cm


Bladed eosphorite crystals crowning a parallel-growth quartz crystal. The eosphorite crystals are sharp, beer-bottle brown, translucent spears. In association, there are small balls of green zanazziite (I count four). There are also microscopic growths coating some of the eosphorite crystals, all over the piece – I suspect they are a roscherite-group mineral (as zanazziite is), perhaps greifensteinite or guimaraesite, but a proper identification requires analytical confirmation. In excellent condition, a few incomplete crystals visible with magnification. The base has been ground level so the quartz crystal stands perfectly for display. A fine specimen of these phosphate minerals.