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Kellyite & Galaxite

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SKY995382

Kellyite & 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 × 1.3 × 1 cm
Description

Yellow brwon crystals of the rare Mn-Al silicate mineral kellyite from the TL in Bald Knob, associated to black galaxite.

Ex Vandenbroucke Museum collection from Waregem, Belgium.

 

Mineral Data
What's on the rock

Kellyite

Formula: 
Mn2+2Al(AlSiO5)(OH)4
Strunz: 
9.ED.15
Hardness: 
2.5
Type Locality: 
Bald Knob deposit (Primary ore body; Crouse Knob deposit), Bald Knob, Sparta, Alleghany Co., North Carolina, USA

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

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