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Nasonite & Manganophyllite

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SKY678506

Nasonite & Manganophyllite

Classic Locality

Description Tabs

Description
Locality: 
Långban, Filipstad, Värmland County, Sweden
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.7 × 1.6 cm
Description

White sharp crystals of the very rare lead mineral nasonite from the famous locality of Langban in a matrix of manganophyllite.

Rare !

Mineral Data
What's on the rock

Nasonite

Formula: 
Pb6Ca4(Si2O7)3Cl2
Strunz: 
9.BE.77
Hardness: 
4.0
Type Locality: 
Parker Mine (Parker shaft), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Manganophyllite

Variety Of: 

Biotite

Formula: 
K(Mn,Mg,Al)2-3(Al,Si)4O10(OH)2
Crystal System: 
Hexagonal
Hardness: 
0.0

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