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Stilpnomelane & Albite

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HCH185615

Stilpnomelane & Albite

Description Tabs

Description
Locality: 
Rupbachtal Quarry, Laurenburg, Lahn, Rhineland-Palatinate, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 6 × 4 cm
Largest Crystal: 
0.50cm
Description

Brown platy crystals of Stilpnomelane up to 4 mm large are sitting with white Albite crystals up to 6 mm large on rotten Diabase.

Mineral Data
What's on the rock

Stilpnomelane

Formula: 
(K,Ca,Na)(Fe2+,Mg,Al,Fe3+)8(Si,Al)12(O,OH)36·nH2O
Strunz: 
9.EG.40
Hardness: 
3.0 - 4.0
Type Locality: 
Melchior and Tobias adits, Horní Údolí (Obergrund), Zlaté Hory (Zuckmantel), Olomouc Region, Moravia (Mähren; Maehren), Czech Republic

Albite

Formula: 
NaAlSi3O8
Strunz: 
9.FA.35
Crystal System: 
Triclinic
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Finnbo (Finbo), Falun, Dalarna, Sweden

Seller Information

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