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Gordonite Strengite & Tourmaline

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SER808822

Gordonite Strengite & Tourmaline

Description Tabs

Description
Locality: 
Eduardo Claim, Conselheiro Pena, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.1 × 2.1 cm
Description

a very rich specimen featuring some vugs filled with light yellow gordonite clusters on and with pink strengite and a tiny cluster of blue tourmaline too

Mineral Data
What's on the rock

Gordonite

Formula: 
MgAl2(PO4)2(OH)2·8H2O
Strunz: 
8.DC.30
Hardness: 
3.5
Streak: 
White
Type Locality: 
Clay Canyon, Fairfield, Oquirrh Mts, Utah Co., Utah, USA

Strengite

Formula: 
FePO4·2H2O
Strunz: 
8.CD.10
Hardness: 
3.5 - 4.0
Streak: 
white
Type Locality: 
Eleonore Mine, Rodheim-Bieber, Wetzlar, Hesse, Germany

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7