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Alleghanyite & Galaxite

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BCK597472

Alleghanyite & Galaxite

Type Locality

Description Tabs

Description
Locality: 
Bald Knob, Sparta, Alleghany County, North Carolina, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.4 × 0.8 cm
Description

You are bidding on a small sample of massive pink alleghanyite with several vugs hosting tiny dodechedra of the mineral. There are also black masses of galaxite. A very good sample of alleghanyite from the type locality. 

Mineral Data
What's on the rock

Alleghanyite

Formula: 
Mn2+5(SiO4)2(OH)2
Strunz: 
9.AF.45
Crystal System: 
Monoclinic
Hardness: 
5.5
Type Locality: 
Bald Knob, Sparta, Alleghany County, North Carolina, United States of America

Galaxite

Formula: 
(Mn,Fe,Mg)(Al,Fe)2O4
Strunz: 
4.BB.05
Hardness: 
7.5
Type Locality: 
Bald Knob deposit (Primary ore body; Crouse Knob deposit), Bald Knob, Sparta, Alleghany Co., North Carolina, USA

Seller Information

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