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Fluorite (Var: Yttrofluorite), Caysichite-(Y)


Fluorite (Var: Yttrofluorite) : (Ca,Y)F2+x, Caysichite-(Y) : Ca2Y2Si4O10(CO3)3·4H2O

Photo Copyright © Pavel M. Kartashov collection & photo  - This image is copyrighted. Unauthorized reproduction prohibited.
Big flesh-coloured yttrofluorite-I (pinkish to white, Y+HREE content is ~35%, its composition almost equal to tveitite-(Y) one, but it is still cubic) with rich inclusions of white caysichite-(Y). This is the earliest generation of fluorite on the locality. Associated minerals are quartz, cleavelandite, amazonite and zinnvaldite. Specimen size is 9x5x4 cm. This rare on the locality association was selfcollected in September of 1990. Pavel M. Kartashov collection and photo.

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