Kataranskite

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Name:	It was first found in 1904 at the Kataranskii Cape, hence the name, Kataranskite.
A Mixture Of:	Albite-Anorthite Series, Phengite

A decorative violet pseudomorph of a plagioclase. It is a very coarse-granular, pegmatitic vein rock consisting mainly of hypersthene and labradorite feldspar.

Originally described from Kolvitsa massif, Kataranskii Cape, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia.

The absorption spectra of violet specimens of kataranskite are related to the presence of Mn3+-bearing muscovite enriched in iron and magnesium. The colour of micaceous pseudomorphs after plagioclase in kataranskite is due to microinclusions of Mn- bearing phengite in the albite-oligoclase matrix. Replacement of plagioclase by the phengite is related to the metasomatic alteration of kataranskite in tectonic crush zones during Palaeozoic activization of gabbros.

Classification of Kataranskite
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Other Information
Health Warning:	No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for Kataranskite
Reference List: - +	Yefimov, M.M.; Krylova, M.D.; Vasil-yeva, S.N.; Marchak, V.P. (1986), Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva. 115(6): 720-721. Bukanov, V. V., A. A. Kolmogorov, V. P. Belitchenko & A. N. Platonov (1989) Violet kataranskite and the nature of its colour. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 118(2): 104–110. [90M/1204].
Internet Links for Kataranskite
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Localities for Kataranskite
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(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.

Russia

Northern Region

Murmanskaja Oblast'

Kola Peninsula

Kataranskii Cape

Kolvitsa massif

Yefimov, M.M., et al (1986), ZVMO: 115(6): 720-721; Bukanov, V.V. (1989) ZVMO: 118(2): 104-110.

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