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Horváthite-(Y) & Leifite

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SYM805341

Horváthite-(Y) & Leifite

Type Locality

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 2 × 1.6 cm
Description

Horvathite-y crystal on leifite. 

Mineral Data
What's on the rock

Horváthite-(Y)

Formula: 
NaY(CO3)F2
Strunz: 
5.BD.25
Crystal System: 
Orthorhombic
Hardness: 
4.0
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

Leifite

Formula: 
(Na,H2O)Na6[Be2Al2(Al,Si)Si15O39]F2
Strunz: 
9.EH.25
Hardness: 
6.0
Colour: 
Colorless
Type Locality: 
Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland