Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Allophane

Views:
Watches:
SER747903

Allophane

Description Tabs

Description
Locality: 
Vallone Stope, Cape Calamita Mine, Capoliveri, Elba, Livorno Province, Tuscany, Italy
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3.1 × 2.1 cm
Description

hundreds blue green balls of allophane

Mineral Data
What's on the rock

Allophane

Formula: 
(Al2O3)(SiO2)1.3-2·2.5-3H2O
Strunz: 
9.ED.20
Crystal System: 
Amorphous
Hardness: 
3.0
Streak: 
White
Type Locality: 
Gräfenthal, Thuringian Forest, Thuringia, Germany