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Mineralogical ClassificationIMA 2002-050 = menyailovite

25th Feb 2006 13:16 UTCMarco E. Ciriotti Manager

The type-description of menyailovite (IMA 2002-050) was published.

Reference:

â€¢ Vergasova, L.P., Semyonova, T.F., Epifanova, V.B., Filatov, S.K., Chubarov, V.M. (2004): Menyailovite, Ca4AlSi(SO4)F13Â·12H2O, a new mineral of volcanic exhalations. Vulkanologiya i Seismologiya, 2, 3-5.

Sorry, no abstract.

25th Feb 2006 18:56 UTCMarco E. Ciriotti Manager

IMA No. 2002-050

Ca4AlSi(SO4)F13Â·12H2O Related to chukhrovite-(Ce)

Cubic: Fd3

a 16.722 Ã…

White to yellowish; vitreous; transparent

Isotropic; n(calc.) 1.430

9.63(100), 5.91(46), 5.04(27), 4.17(19), 3.219(32), 2.235(28), 2.178(33)

26th Feb 2006 13:12 UTCMarco E. Ciriotti Manager

The structure of the equivalent synthetic of menyailovite was solved.

Reference:

â€¢ Mathew, M., Takagi, S., Waerstad, K.R., Frazier, A.W. (1981): The crystal structure of synthetic chukhrovite, Ca4AlSi(SO4)F13Â·12H2O. American Mineralogist, 66, 392-397.

27th Feb 2006 00:53 UTCJolyon Ralph Founder

added to the database

Jolyon

2nd Mar 2006 09:23 UTCErnst A.J.Burke

The name of 2002-050 is NOT menyailovite, BUT meniaylovite.

2nd Mar 2006 11:09 UTCMarco E. Ciriotti Manager

The reference, as cited in the article published on New Data on Minerals, evidently, is not correct: simply a translitteration error (is not the case to maintain the not correct name with "sic").

Here is the correct version:

â€¢ Vergasova, L.P., Semyonova, T.F., Epifanova, V.B., Filatov, S.K., Chubarov, V.M. (2004): Meniaylovite, Ca4AlSi(SO4)F13Â·12H2O, a new mineral of volcanic exhalations. Vulkanologiya i Seismologiya, 2, 3-5.

Many thanks Prof. Burke.

2nd Mar 2006 11:14 UTCMarco E. Ciriotti Manager

Corrections fixed.