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Allactite Rhodochrosite & Kraisslite

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BCK796247

Allactite Rhodochrosite & Kraisslite

George Elling collection
Rare Mineral

Description Tabs

Description
Locality: 
Sterling Hill, Ogdensburg, Sussex County, New Jersey, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.4 × 1.9 cm
Description

You are bidding on a small miniature sample with rich brown/maroon blades of allactite in numerous bundles on matrix with clusters of rhodochrosite and thousands of tiny clusters of kraisslite rosettes. Rich sample from the George Elling collection. 

Mineral Data
What's on the rock

Allactite

Formula: 
Mn2+7(AsO4)2(OH)8
Strunz: 
8.BE.30
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Moss mine, Nordmark (Nordmarksberg), Filipstad, Värmland, Sweden

Rhodochrosite

Formula: 
MnCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Cavnic Mine (Kapnikbánya), Cavnic (Kapnic; Kapnik), Maramureș Co., Romania

Kraisslite

Formula: 
Zn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16
Strunz: 
8.BE.45
Crystal System: 
Hexagonal
Hardness: 
3.0 - 4.0
Type Locality: 
Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

Seller Information

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