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Brandtite On Braunite

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LGM122120

Brandtite On Braunite

Ex Udo Hörig, Darmstadt, Germany

Description Tabs

Description
Locality: 
Sailauf, Lower Franconia, Bavaria, Germany
Size Range: 
Cabinet (10-18 cm)
Size: 
8 × 10 × 7 cm
Largest Crystal: 
0.50cm
Description

Tabular Brandtite crystals forming spherical aggregates up to 5 mm on black braunite. Pale brown colour. Nice sample of a worldwide rare arsenate.
Weight: 570 grams

Mineral Data
What's on the rock

Brandtite

Formula: 
Ca2(Mn2+,Mg)(AsO4)2·2H2O
Strunz: 
8.CG.10
Crystal System: 
Monoclinic
Hardness: 
3.5
Type Locality: 
Harstigen Mine, Pajsberg, Persberg district, Filipstad, Värmland, Sweden

Braunite

Formula: 
Mn2+Mn3+6(SiO4)O8
Strunz: 
9.AG.05
Hardness: 
6.0 - 6.5
Streak: 
Black
Type Locality: 
Oehrenstock (Öhrenstock), Langewiesen, Ilmenau District, Thuringian Forest, Thuringia, Germany

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Thank you for viewing my auctions! Maintaining high standards in customer service is extremely important to me. If shipping takes longer than expected, please contact me. It is possible to file an investigation request, and during nearly ten years of e-rocks NO parcel was finally lost.

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+++IMPORTANT+++
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