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Bauxite

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PDM1072981

Bauxite

Description Tabs

Description
Locality: 
Arkansas, United States of America
Class: 
Massive/Crystalline
Size Range: 
Cabinet (10-18 cm)
Size: 
11.6 × 7.6 × 7 cm
Weight: 
680.00gr
Description

Big specimen featuring rounded pisolitic concretions of “bauxite” with one face is cut and polished. It is from Arkansas, probably from the Saline County. Bauxite is a rock, usually composed of a mixture of boehmite, diaspore and/or gibbsite.

Cut by Herman Torfs in 1972, specimen #68.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Bauxite

Mixture Of: 

Böhmite

Formula: 
AlO(OH)
Strunz: 
4.FE.15
Hardness: 
3.5

Diaspore

Formula: 
AlO(OH)
Strunz: 
4.FD.10
Hardness: 
6.5 - 7.0

Gibbsite

Formula: 
Al(OH)3
Strunz: 
4.FE.10
Hardness: 
2.5 - 3.0

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