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Guimarãesite

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JYJ634578

Guimarãesite

Description Tabs

Description
Locality: 
Itinga, Minas Gerais, Brazil
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.8 × 0.8 cm
Description

Very good sample hosting beige to brown guimarãesite among larger  eosphorite. This roscherite mineral is yet only known from one area in brazil. 

Rare mineral!

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