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Ivanyukite-Na-T

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Formula:
Na
 
2
Ti
 
4
(SiO
 
4
)
 
3
(OH)O
 
3
 · 7H
 
2
O
System:TrigonalColour:Colorless to pale brown
Hardness:4
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
mindat.org URL:http://www.mindat.org/min-39652.html
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Type Occurrence of Ivanyukite-Na-T

Type Locality: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

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Colorless to pale brown
Streak:White
Hardness (Mohs):4
Cleavage:Perfect
on {1011}
Density (measured):2.7 g/cm3
Density (calculated):2.384 g/cm3

Crystallography of Ivanyukite-Na-T

Crystal System:Trigonal
Class (H-M):3m - Ditrigonal Pyramidal
Space Group:R3m
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 ų (Calculated from Unit Cell)
Z:3

Optical Data of Ivanyukite-Na-T

Type:Uniaxial (+)
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

Formula:
Na
 
2
Ti
 
4
(SiO
 
4
)
 
3
(OH)O
 
3
 · 7H
 
2
O
Essential elements:H, Na, O, Si, Ti
All elements listed in formula:H, Na, O, Si, Ti

Other Names for Ivanyukite-Na-T

Other Languages:

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 Ivanyukite-Na-T

Reference List:

- +
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

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    • 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.
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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
          • Khibiny Massif
    		American Mineralogist, Volume 94, pages 1450–1458, 2009
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    Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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