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Gageite

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FRE124495

Gageite

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Description
Locality: 
Monte Nero Mine, Rocchetta Vara, La Spezia Province, Liguria, Italy
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2 × 3 × 2 cm
Description

Round aggregates up to about 2 mm of bronze colour acicular crystals of gageite with copper on chert matrix. A very nice, new occurrence for the mine. Analyzed (EDX + XRD).

Mineral Data
What's on the rock

Gageite

Formula: 
Mn21(Si4O12)2O3(OH)20
Strunz: 
9.DH.35
Crystal System: 
Triclinic Monoclinic
Hardness: 
3.0
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

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