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Lussatite

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TWH592114

Lussatite

Classic Locality

Description Tabs

Description
Locality: 
Puy du Mur Quarry, Mur-sur-Allier, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 2.3 × 1.6 cm
Description

A chalcedony-like specimen of fossilized snail consisted of packed microscopic spheres made up of tiny microcrystalline blades of cristobalite and tridymite. It is also a synonym of classic opal-ct.

Mineral Data
What's on the rock

Lussatite

Renamed To: 

Opal-CT

Formula: 
SiO2·nH2O
Hardness: 
0.0
Type Locality: 
Lussat, Puy-de-Dôme, Auvergne, France
JohnTu's Attic