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Cappelenite-(Y) & Niobokupletskite

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SYM163697

Cappelenite-(Y) & Niobokupletskite

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3 × 3 cm
Description

Pink very rare cappelenite-y crystal with excellent quality crystal sprays of niobokupletskite and kupletskite.

Mineral Data
What's on the rock

Cappelenite-(Y)

Formula: 
Ba(Y,Ce)6Si3B6O24F2
Strunz: 
9.AJ.30
Hardness: 
6.0 - 6.5
Type Locality: 
Natrolittodden, Vesle Arøya, Langesundsfjorden, Larvik, Vestfold, Norway

Niobokupletskite

Formula: 
K2Na(Mn,Zn,Fe)7(Nb,Zr,Ti)2Si8O26(OH)4(O,F)
Strunz: 
9.DC.05
Crystal System: 
Triclinic
Hardness: 
3.0 - 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