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Woodruffite & Smithsonite

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RMM638882

Woodruffite & Smithsonite

Description Tabs

Description
Locality: 
Moonshine Mine, Lardeau, Revelstoke, British Columbia, Canada
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 1.5 × 1.2 cm
Description

This is a specimen of black, iron and cobalt rich woodruffite, which forms a layer under botryoidal grey smithsonite. The woodruffite is also disseminated throughout the sample.

The identity of the woodruffite has been confirmed by EDS. See the analysis tab for the report.

 

Mineral Data
What's on the rock

Woodruffite

Formula: 
Zn(Mn4+,Mn3+)5O10·3½H2O
Strunz: 
4.FL.25
Hardness: 
4.5
Streak: 
Brown
Type Locality: 
Passaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

Smithsonite

Formula: 
ZnCO3
Strunz: 
5.AB.05
Hardness: 
4.0 - 4.5
Streak: 
White
Analysis
Analysis Report - only: Woodruffite & Smithsonite

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