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Groutite

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BCK507351

Groutite

Type Locality

Description Tabs

Description
Locality: 
Sagamore Mangan #2 Pit, Ironton, Cuyuna North Range, Crow Wing County, Minnesota, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.1 × 1.1 × 0.8 cm
Description

You are bidding on a very rare and hard to obtain type locality specimen of groutite as bright bladed crystals on quartz matrix. Groutite is not so rare, but this sample is exceptional for its rarity as a type locality piece, 

Mineral Data
What's on the rock

Groutite

Formula: 
Mn3+O(OH)
Strunz: 
4.FD.10
Hardness: 
3.5 - 4.0
Type Locality: 
Sagamore Mangan No. 2 pit, Ironton, Cuyuna North Range, Crow Wing Co., Minnesota, USA

Seller Information

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