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Norbergite

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MEX160638

Norbergite

Fluorescent

Description Tabs

Description
Locality: 
Franklin, Sussex County, New Jersey, United States of America
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.4 × 1.8 × 0.8 cm
Description

Good specimen with yellowish-brown norbergite under the daylight, and yellow fluorescent under shortwave uv-light.

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