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Rhabdophane-(Ce) & Gonnardite

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SYM193519

Rhabdophane-(Ce) & Gonnardite

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.5 × 1.5 cm
Description

Rich specimen of dark to light brown sprays of rhabdophane ce with white gonnardite crystals on aegirine and albite

Mineral Data
What's on the rock

Rhabdophane-(Ce)

Formula: 
(Ce,La)(PO4)·H2O
Strunz: 
8.CJ.45
Crystal System: 
Hexagonal
Hardness: 
3.5
Type Locality: 
Fowey Consols (incl. Wheal Treasure; Wheal Fortune; Wheal Chance), Tywardreath, St Austell District, Cornwall, England, UK

Gonnardite

Formula: 
(Na,Ca)2(Si,Al)5O10·3H2O
Strunz: 
9.GA.05
Hardness: 
4.0 - 5.0
Type Locality: 
La Chaux de Bergonne, Gignat, Saint-Germain-Lembron, Puy-de-Dôme, Auvergne, France