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Mckelveyite-(Y) & Analcime

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SYM1110206

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1 × 0.5 cm
Description

Yellow spheres of mckelveyite-(y) on a matrix of analcime. 

Mineral Data
What's on the rock

Mckelveyite-(Y)

Formula: 
NaCaBa3Y(CO3)6·3H2O
Strunz: 
5.CC.05
Hardness: 
3.5 - 4.0
Type Locality: 
Diamond Alkali Daco No. 3, Green River Formation, Sweetwater Co., Wyoming, USA

Analcime

Formula: 
Na2(Al2Si4O12)·2H2O
Strunz: 
9.GB.05
Crystal System: 
Triclinic
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Cyclopean Islands, Acitrezza (Aci Trezza), Etna Volcanic Complex, Catania Province, Sicily, Italy