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Magnussonite & Mcgovernite

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BCK653632

Magnussonite & Mcgovernite

Ted Bartels collection
Type Locality

Description Tabs

Description
Locality: 
Sterling Mine, Ogdensburg, Sussex County, New Jersey, United States of America
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 2.8 × 0.9 cm
Description

You are bidding on a small sample with a vein filling hosting chocolate brown, very rare magnussonite in association with bronzy plates of mcgovernite. A very good sample of these two rare arsenates from Sterling Hill. Ted Bartels collection. 

Mineral Data
What's on the rock

Magnussonite

Formula: 
Mn10As6O18(OH,Cl)2
Strunz: 
4.JB.15
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Långban, Filipstad, Värmland, Sweden

Mcgovernite

Formula: 
Mn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21
Strunz: 
8.BE.45
Hardness: 
0.0
Type Locality: 
Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

Seller Information

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