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Phillipsite-Na Genthelvite & Gaidonnayite

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CFL693064

Phillipsite-Na Genthelvite & Gaidonnayite

Type Locality

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3 × 3 cm
Weight: 
30.00gr
Description

Very interesting old specimen of phillipsite-Na associated with genthelvite, polylithionite, gaidonnayite (type locality) and other unidentified species, several of which are pseudomorphs after serandite.  Notice the beautiful fluorescence colours.  Ex-Paul Lortie specimen (label).

Mineral Data
What's on the rock

Phillipsite-Na

Formula: 
(Na,K,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32]·12H2O
Strunz: 
9.GC.10
Crystal System: 
Monoclinic
Hardness: 
4.0 - 5.0
Colour: 
White
Streak: 
White
Type Locality: 
Rupe di Aci Castello, Aci Castello, Etna Volcanic Complex, Catania Province, Sicily, Italy

Genthelvite

Formula: 
Zn4(Be3Si3O12)S
Strunz: 
9.FB.10
Hardness: 
6.0 - 6.5
Type Locality: 
West Cheyenne Canon, Cheyenne District (St. Peters Dome District), El Paso Co., Colorado, USA

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

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