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Kosnarite Ushkovite & Roscherite

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SER687071

Kosnarite Ushkovite & Roscherite

Description Tabs

Description
Locality: 
Jenipapo District, Itinga, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.7 × 2.5 cm
Description

a wonderful cluster of colurless kosnarite crystals with some orange ushkovite and tiny brown balls of roscherite

Mineral Data
What's on the rock

Kosnarite

Formula: 
KZr2(PO4)3
Strunz: 
8.AC.60
Crystal System: 
Trigonal Pseudo-cubic
Hardness: 
4.5
Streak: 
White
Type Locality: 
Mount Mica Quarry (Mount Mica Mine), Paris, Oxford Co., Maine, USA

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