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Willemite Franklinfurnaceite Hodgkinsonite & Pyrochroite

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BCK673600

Willemite Franklinfurnaceite Hodgkinsonite & Pyrochroite

Paul Chorney & George Elling collections
Type Locality

Description Tabs

Description
Locality: 
Franklin Mine, Franklin, Sussex County, New Jersey, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 3.1 × 2.7 cm
Description

You are bidding on a small, vuggy sample with an unusual assemblage of species. The front of the sample hosts vugs in pyrochroite with very unusual groups of stout hexagonal barrels of secondary willemite. The back of the sample hosts massive pink hodgkinsonite with small vugs hosting pyrochroite crystals and in one vug some minute, reddish-brown plates of very rare franklinfurnaceite on partial hodgkinsonite crystals. 

Mineral Data
What's on the rock

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

Franklinfurnaceite

Formula: 
Ca2Fe3+Mn2+3Mn3+(Zn2Si2O10)(OH)8
Strunz: 
9.EC.55
Hardness: 
3.0
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Hodgkinsonite

Formula: 
Mn2+Zn2(SiO4)(OH)2
Strunz: 
9.AE.20
Hardness: 
4.5 - 5.0
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Pyrochroite

Formula: 
Mn(OH)2
Strunz: 
4.FE.05
Hardness: 
2.5 - 3.0
Type Locality: 
Pajsberg Mine, Pajsberg, Persberg district, Filipstad, Värmland, Sweden

Seller Information

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