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Ushkovite & Roscherite

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CHP928247

Ushkovite & Roscherite

Classic Locality

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Description
Locality: 
Ponte do Piauí Claim, Piauí Valley, Taquaral, Minas Gerais, Brazil
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.7 × 1.5 cm
Description

specimen with a fantastic radiating group of yellow crystals of ushkovitewith associat brown crystalline balls of roscherite on matrix.

c. 4777

Mineral Data
What's on the rock

Ushkovite

Formula: 
MgFe3+2(PO4)2(OH)2·8H2O
Strunz: 
8.DC.30
Crystal System: 
Triclinic
Hardness: 
3.5
Type Locality: 
Pit No. 232, Bol'shoi Tatkul' Lake, Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...

Roscherite

Formula: 
Ca2Mn2+5Be4(PO4)6(OH)4·6H2O
Strunz: 
8.DA.10
Crystal System: 
Monoclinic Tabular crystals or platy aggregates
Hardness: 
4.5 - 0.0
Streak: 
White
Type Locality: 
Greifenstein Rocks, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany

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