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Fluoborite & Norbergite

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RMM541028

Fluoborite & Norbergite

Fluorescent

Description Tabs

Description
Locality: 
Crystal Lake, Galway Township, Peterborough County, Ontario, Canada
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.2 × 1.2 cm
Description

This specimen contains greyish prisms of fluoborite, blebs of orange norbergite with minor black graphite.

The norbergite fluoresces a dull orange and the fluoborite fluoresces a bright white in short-wave UV light.

Mineral Data
What's on the rock

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

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

Seller Information

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Please note that we do not hold any responsibility for transport damages or loss of shipped goods if insured shipping is not purchased. Transport damages are to be claimed directly to the transport company in case of insured shipment. The recipients are solely responsible for the compliance of the shipped items with local customs restrictions and tax issues.

 

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