Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Dumortierite

Views:
Watches:
TBM888811

Dumortierite

Description Tabs

Description
Locality: 
Riampotsy, Itremo, Mangataboahangy, Ambatofinandrahana, Amoron'i Mania, Madagascar
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.5 × 2 cm
Weight: 
32.00gr
Description

Bundles of blue radiated acicular crystals up to 12 mm long incorporated in the matrix

Mineral Data
What's on the rock

Dumortierite

Formula: 
(Al,Fe3+)7(SiO4)3(BO3)O3
Strunz: 
9.AJ.10
Crystal System: 
Orthorhombic
Hardness: 
7.0 - 8.0
Type Locality: 
Ducarre's Quarry, Beaunant, Chaponost, Rhône, Rhône-Alpes, France...