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Gaidonnayite & Burbankite

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BCK501934

Gaidonnayite & Burbankite

Description Tabs

Description
Locality: 
Pocos de Caldas, Minas Gerais, Brazil
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.5 × 1.6 cm
Description

You are bidding on a small piece of syenite with one vug hosting a spray of burbankite with a separate vug hosting beautiful colorless crystals of gaidonnayite. There are also nice crystals of ilmenite, chlorite, analcime and natrolite. An interesting specimen from this obscure syenite!

Mineral Data
What's on the rock

Gaidonnayite

Formula: 
Na2Zr(Si3O9)·2H2O
Strunz: 
9.DM.15
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 0.0
Streak: 
White
Type Locality: 
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Burbankite

Formula: 
(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Strunz: 
5.AC.30
Crystal System: 
Hexagonal
Hardness: 
3.5
Type Locality: 
Vermiculite prospect No. 6, Big Sandy Creek, Bearpaw Mts, Hill Co., Montana, USA

Seller Information

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