Carletonite
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Carletonite is a rare silicate mineral with formula KNa4Ca4(CO3)4Si8O18(F,OH)·(H2O).
It is a phyllosilicate and a member of the apophyllite group. Its tetragonal crystals are a translucent blue, white, colorless or pink with a vitreous to dull lustre. It has a density of 2.45 and a hardness of 4–4.5.
It was discovered by G.Y Chao and named for the school he attended, Carleton University of Ottawa.[1] It was first described in 1969 for an occurrence at Mont Saint-Hilaire, Quebec. The type locality at Mont Saint–Hilaire is the only reported occurrence.[2][3]
It occurs in hornfels and siliceous marble xenoliths within and adjacent to a nepheline syenite intrusion. It occurs in association with quartz, narsarsukite, calcite, fluorite, ancylite, molybdenite, leucosphenite, lorenzenite, galena, albite, pectolite, apophyllite, leifite, microcline and arfvedsonite.[2]
References
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- ↑ Carletonite is a rare mineral found only in Mt Saint-Hilaire, Quebec, Canada.
- ↑ a b Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
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