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Sheldrickite & Shortite & Vaterite

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CFL790490

Sheldrickite & Shortite & Vaterite

Type Locality

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3.5 × 2.3 cm
Description

Type locality specimen of sheldrickite crystals associated with shortite and vaterite.  The Poudrette Quarry is the only locality where sheldrickite is found.  Collected by Gilles Haineault in 1990.

Mineral Data
What's on the rock

Sheldrickite

Formula: 
NaCa3(CO3)2F3·H2O
Strunz: 
5.DC.15
Crystal System: 
Trigonal
Hardness: 
3.0
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

Shortite

Formula: 
Na2Ca2(CO3)3
Strunz: 
5.AC.25
Hardness: 
3.0
Type Locality: 
John Hay Jr. Well No. 1, Green River Formation, Sweetwater Co., Wyoming, USA

Vaterite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.20
Hardness: 
3.0
Colour: 
Colorless
Streak: 
White
Type Locality: 
Ballycraigy, Larne, County Antrim, Northern Ireland, UK

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