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Senegalite & Crandallite On Augelite

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CLB171154

Senegalite & Crandallite On Augelite

seller's own find 2007/2008
Type Locality

Description Tabs

Description
Locality: 
Kourou Diakouma Mountain, Falémé River basin, Tambacounda Region, Senegal
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.4 × 2 cm
Description

A very interesting specimen. The matrix grows two stalactitic aggregates. All is incrusted with pale blue augelite (maybe turquoise - hard to define) and covered with yellow-green senegalite crystals. The top of some senegalite crystals is sprinkled with white crandallite. Senegalite on the backside too. A lot of free-standing senegalite crystals.

Mineral Data
What's on the rock

Senegalite

Formula: 
Al2(PO4)(OH)(OH)2·H2O
Strunz: 
8.DE.05
Hardness: 
5.5
Type Locality: 
Mount Kourou Diakouma (Kouroudiako), Saraya, Falémé River basin, Tambacounda Region, Senegal

Crandallite

Formula: 
CaAl3(PO4)2(OH)5·H2O
Strunz: 
8.BL.10
Crystal System: 
Trigonal
Hardness: 
5.0
Streak: 
White
Type Locality: 
Brooklyn Mine, Silver City, Tintic District, East Tintic Mts, Juab Co., Utah, USA

Augelite

Formula: 
Al2(PO4)(OH)3
Strunz: 
8.BE.05
Crystal System: 
Monoclinic
Hardness: 
4.5 - 5.0
Streak: 
White
Type Locality: 
Västanå Iron Mine (Westanå Mine), Näsum, Bromölla, Skåne, Sweden

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

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