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|System:||Trigonal||Colour:||Colorless to pale brown|
|Name:||Named in honor of Gregory Yur’evich Ivanyuk, Russian mineralogist and petrologist, head of the Laboratory of Self-Organized Mineral Systems in the Geological Institute of the Kola Science Centre of the Russian Academy of Sciences|
This page provides mineralogical data about Ivanyukite-Na-T.
Classification of Ivanyukite-Na-T
|IMA status:||Approved 2007|
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Type Occurrence of Ivanyukite-Na-T
|Type Locality:||Koashva quarry, Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia|
|Geological Setting of type material:||Ivanyukite-Na-T is a low-temperature hydrothermal mineral crystallized from supersaturated Na-rich aqueous solutions|
Physical Properties of Ivanyukite-Na-T
|Colour:||Colorless to pale brown|
|Density (measured):||2.7 g/cm3|
|Density (calculated):||2.384 g/cm3|
Crystallography of Ivanyukite-Na-T
|Class (H-M):||3m - Ditrigonal Pyramidal|
|Cell Parameters:||a = 10.921(3) Å, c = 13.885(4) Å|
|Ratio:||a:c = 1 : 1.271|
|Unit Cell Volume:||V 1,434.17 Å³ (Calculated from Unit Cell)|
Optical Data of Ivanyukite-Na-T
|RI values:||nω = 1.760() nε = 1.850(9)|
|Maximum Birefringence:||δ = 0.090|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
|Surface Relief:||Very High|
Chemical Properties of Ivanyukite-Na-T
|Simplified for copy/paste:||Na2Ti4(SiO4)3(OH)O3·7H2O|
|Essential elements:||H, Na, O, Si, Ti|
|All elements listed in formula:||H, Na, O, Si, Ti|
Other Names for Ivanyukite-Na-T
|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 Ivanyukite-Na-T
Victor N. Yakovenchuk, Alexander P. Nikolaev, Ekaterina A. Selivanova, Yakov A. Pakhomovsky, Julia A. Korchak, Dar’ya V. Spiridonova, Oleg A. Zalkind, and Sergey V. Krivovichev (2009): Ivanyukite-Na-T, ivanyukite-Na-C, ivanyukite-K, and ivanyukite-Cu: New microporous titanosilicates from the Khibiny massif (Kola Peninsula, Russia) and crystal structure of ivanyukite-Na-T. American Mineralogist, 94, 1450–1458.
Internet Links for Ivanyukite-Na-T
Localities for Ivanyukite-Na-T
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(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.
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New Locality Added: Edrosa, Vinhais, Bragança District, PortugalFrom Rui Nunes, 1st Oct 2014 10:20:09