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Woodruffite

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BCK797529

Woodruffite

Steven Phillips collection
Type Locality

Description Tabs

Description
Locality: 
Passaic Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, United States of America
Class: 
Massive/Crystalline
Size Range: 
Micromount (under 1cm)
Size: 
0.3 × 0.4 × 0.4 cm
Description

You are bidding on a small sample with a fragment of polycrystalline woodruffite with a corroded franklinite crystal embedded it. This is an otherwise unimpressive species, but this sample is a portion of the type sample, and matches the description of the type material perfectly! From the Steve Phillips collection of Franklin District micromounts and rarities. 

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

Seller Information

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