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Kraisslite & Allactite

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BCK577750

Kraisslite & Allactite

Type Locality

Description Tabs

Description
Locality: 
Sterling Mine, Ogdensburg, Sussex County, New Jersey, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 1.9 × 0.8 cm
Description

You are bidding on a small sample with a fracture surface lined with hundreds of small brown kraisslite crystals and prisms of altered violet allactite. There are also some nice pink clusters of smithsonite. 

Mineral Data
What's on the rock

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

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

Seller Information

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