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Norbergite & Fluoborite

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SHS202517

Norbergite & Fluoborite

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Description
Locality: 
Crystal Lake, Galway Township, Peterborough County, Ontario, Canada
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3 × 2.5 cm
Description

 Norbergite and fluoborite on matrix

Mineral Data
What's on the rock

Norbergite

Formula: 
Mg3(SiO4)(F,OH)2
Strunz: 
9.AF.40
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 6.5
Type Locality: 
Östanmossa mine, Röberg ore field, Norberg, Västmanland, Sweden

Fluoborite

Formula: 
Mg3(BO3)(F,OH)3
Strunz: 
6.AB.50
Crystal System: 
Hexagonal
Hardness: 
3.5
Streak: 
White
Type Locality: 
Tallgruvan, Kallmora, Norberg, Västmanland, Sweden
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