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Magnesio-arfvedsonite & Carletonite

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CSL148811

Magnesio-arfvedsonite & Carletonite

Description Tabs

Description
Locality: 
Mont Saint-Hilaire, Montérégie, Québec, Canada
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.2 × 0.8 cm
Description

Very nice bluish-black magnesio-arfedsonite crystals from MSH, associating with white-pale blue crystals of carletonite.

Mineral Data
What's on the rock

Magnesio-arfvedsonite

Formula: 
{Na}{Na2}{Mg4Fe3+}(Si8O22)(OH)2
Strunz: 
9.DE.25
Hardness: 
5.0 - 6.0
Type Locality: 
Hpakant-Tawmaw Jade Tract, Hpakant Township (Hpakan; Phakant; Phakan), Mohnyin District (Moe Hnyin District), Kachin State, Burma (Myanmar)

Carletonite

Formula: 
KNa4Ca4Si8O18(CO3)4(OH,F)·H2O
Strunz: 
9.EB.20
Crystal System: 
Tetragonal
Hardness: 
4.0 - 4.5
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
Loranth Minerals

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