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Gibbsite & Böhmite

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SHS1047728

Gibbsite & Böhmite

Description Tabs

Description
Locality: 
Saga #1 Quarry, Sagåsen, Mørje, Porsgrunn, Vestfold og Telemark, Norway
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 3.3 × 1.4 cm
Description

Böhmite and gibbsite on matrix

Mineral Data
What's on the rock

Gibbsite

Formula: 
Al(OH)3
Strunz: 
4.FE.10
Hardness: 
2.5 - 3.0
Streak: 
White
Type Locality: 
Richmond, Berkshire Co., Massachusetts, USA

Böhmite

Formula: 
AlO(OH)
Strunz: 
4.FE.15
Crystal System: 
Orthorhombic
Hardness: 
3.5
Streak: 
White
Type Locality: 
Mas Rouge, Les Baux-de-Provence, Bouches-du-Rhône, Provence-Alpes-Côte d'Azur, France...