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Lombaardite

Synonym of:Allanite


A synonym of either allanite-(Ce) or allanite-(Y).

Original "lombaardite" was mixture of fibrous allanite-(Ce) and dark-coloured turmaline (schorl) analysed overlooking some components (B2O3 etc.).
Fibrous allanite-(Ce) was described as lombaardite from tin deposits of Magadan region in Russia.
Fibrous to thin-prismatic "lombaardite" overgrowing thalenite-(Y) from Askagen is allanite-(Y).

References for Lombaardite

Reference List:Nel, H.J., Strauss, C.A. & Wickman, F.E. (1949): Lombaardite from the Zaaiplaats Tin mine, Central Transvaal. Union of South Africa, Dept. of Mines, Geol.Surv. Mem. No 43, 45-57.

Neumann, H. & Nilssen, B. (1962): Lombaardite, a rare earth silicate, identical with, or very closely related to Allanite. Norsk Geologisk Tidsskrift 42, 277-286

Armbuster et al. (2006): Recommended nomenclature of epidote-group minerals. Eur. J.Mineral. 18, 551-567

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