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Tephroite Caryopilite & Willemite

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BCK980665

Tephroite Caryopilite & Willemite

Type Locality

Description Tabs

Description
Locality: 
Franklin Mine, Franklin, Sussex County, New Jersey, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.3 × 1 cm
Description

You are bidding on a small sample with some fantastic, large crystals of tephroite with prisms of willemite and dendritic growths of caryopilite. 

Mineral Data
What's on the rock

Tephroite

Formula: 
Mn2+2SiO4
Strunz: 
9.AC.05
Crystal System: 
Orthorhombic Forms short prismatic crystals.
Hardness: 
6.0
Streak: 
Pale gray
Type Locality: 
Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

Caryopilite

Formula: 
(Mn,Mg)3(Si2O5)(OH)4
Strunz: 
9.ED.15
Hardness: 
3.0 - 3.5
Type Locality: 
Harstigen Mine, Pajsberg, Persberg district, Filipstad, Värmland, Sweden

Willemite

Formula: 
Zn2SiO4
Strunz: 
9.AA.05
Hardness: 
5.5
Streak: 
White
Type Locality: 
Vieille Montagne (Altenberg; Kelmisberg), Moresnet, Kelmis, Plombières-Vieille Montagne District (Plombières-Altenberg), Verviers, Liège Province, Belgium

Seller Information

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