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Bertrandite & Parsettensite

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BCK734916

Bertrandite & Parsettensite

Classic Locality

Description Tabs

Description
Locality: 
Foote Mine, Cleveland County, North Carolina, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2 × 1.6 cm
Description

You are bidding on a small sample with a large vug hosting rich tabular blades of bertrandite with abundant tiny hexagonal 'donuts' of parsettensite crystals. 

Mineral Data
What's on the rock

Bertrandite

Formula: 
Be4(Si2O7)(OH)2
Strunz: 
9.BD.05
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 7.0
Type Locality: 
Petit-Port, Nantes, Loire-Atlantique, Pays de Loire, France

Parsettensite

Formula: 
K1.2Mn8(Si,Al)12O26(OH)10
Strunz: 
9.EG.40
Hardness: 
1.5
Type Locality: 
Parsettens Alp, Tinizong (Tinzen), Oberhalbstein (Surses; Sursass), Albula Valley, Grischun (Grisons; Graubünden), Switzerland

Seller Information

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