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Adamsite & Neighborite

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SYM162412

Adamsite & Neighborite

Type Locality

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 1.5 × 3 cm
Description

With blades of adamsite with gemmy yellow neighborite crystals.

Mineral Data
What's on the rock

Adamsite

Variety Of: 

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Hardness: 
0.0

Neighborite

Formula: 
NaMgF3
Strunz: 
3.AA.35
Hardness: 
4.5
Type Locality: 
Sun Haverstrite Well, Uintah Co., Utah, USA