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Tephroite Pyrite Caryopilite & Andradite

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BCK887971

Tephroite Pyrite Caryopilite & Andradite

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: 
2 × 1.6 × 1.4 cm
Description

You are bidding on a small sample with very nice, terminated tephroite crystals with orange andradite, dendritic caryopilite sprays, prisms of willemite and a cluster of pyrite crystals! Pyrite is very rare in this classic assemblage at Franklin. Ex Alice Kraissl collection from the Steve Phillips collection of Franklin/SH micromounts. 

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

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

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

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Drammen, Buskerud, Norway

Seller Information

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