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Guimarãesite

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SER885866

Guimarãesite

Type Locality

Description Tabs

Description
Locality: 
Piauí Valley, Taquaral, Itinga, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.8 × 4.1 × 3.1 cm
Description

a large albite specimen all covered by yellow and brown clusters of guimaraesite, a rare beryllium phosphate which Piauì valley is the type locality ; vary rare indeed this specimen because of its dimension

Mineral Data
What's on the rock

Guimarãesite

Formula: 
Ca2(Zn,Mg,Fe2+)5Be4(PO4)6(OH)4·6H2O
Strunz: 
8.DA.10
Hardness: 
0.0
Type Locality: 
Guimarãesite occurrence, Piauí valley, Taquaral, Itinga, Jequitinhonha valley, Minas Gerais, Brazil