Tusionite (original) (raw)

A valid IMA mineral species

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About TusioniteHide

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Colour:

Colourless, yellow-brown, honey yellow

Name:

Named after its discovery locality, Tusion River valley, Pamir Mountains, Tajikistan.

This page provides mineralogical data about Tusionite.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:4062:0

ea1c406e-d54c-487c-9aab-ac8b23dac289

IMA Classification of TusioniteHide

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Classification of TusioniteHide

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6.AA.15

6 : BORATES
A : Monoborates
A : BO3, without additional anions; 1(D).

24.3.3.2

24 : ANHYDROUS BORATES
3 : AmBn[XO3]p

9.7.10

9 : Borates
7 : Borates of Mn

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol Source Reference
Tsn IMA–CNMNC Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of TusioniteHide

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Colour:

Colourless, yellow-brown, honey yellow

Hardness:

VHN40=400 - 750 kg/mm2 - Vickers

Comment:

VH 400-500 on (001); 700-750 perpendicular to (001)

Density:

4.73 g/cm3 (Measured) 4.85 g/cm3 (Calculated)

Optical Data of TusioniteHide

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RI values:

_n_ω = 1.854(2) _n_ε = 1.752(2)

δ = 0.102

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Colour in reflected light:

grayish white

Chemistry of TusioniteHide

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Mindat Formula:

Mn2+Sn4+[BO3]2

Crystallography of TusioniteHide

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Class (H-M):

3 - Rhombohedral

Cell Parameters:

a = 4.781(1) Å, c = 15.381(7) Å

Unit Cell V:

304.48 ų (Calculated from Unit Cell)

Morphology:

Thin platy crystals, to 1.5 cm, in rosettelike aggregates.

Crystal StructureHide

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ID Species Reference Link Year Locality Pressure (GPa) Temp (K)
0005417 Tusionite Cooper M A, Hawthorne F C, Novak M (1994) The crystal structure of tusionite, MnSn(BO3)2, a dolomite-structure borate The Canadian Mineralogist 32 903-907 1994 0 293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
5.12 Å (4)
4.02 Å (4)
3.65 Å (9)
2.818 Å (10)
2.393 Å (6)
1.999 Å (6)
1.744 Å (8)

Geological EnvironmentHide

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Geological Setting:

Boron-rich complex pegmatites of the elbaite subtype.

Type Occurrence of TusioniteHide

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General Appearance of Type Material:

Lamellar intergrowths up to 1.5 cm with tetrawickmanite and as small tabular crystals.

Place of Conservation of Type Material:

Mineralogical Museum, St. Petersburg University, St. Petersburg, Russia, 17096.
Mining Institute, St. Petersburg, Russia, 1661/1.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 82546.

Geological Setting of Type Material:

Miarolitic granite pegmatite.

Associated Minerals at Type Locality:

Synonyms of TusioniteHide

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Other Language Names for TusioniteHide

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Varieties of TusioniteHide

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Common AssociatesHide

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Associated Minerals Based on Photo Data:

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Fluorescence of TusioniteHide

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Other InformationHide

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Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

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References for TusioniteHide

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Reference List:

Konovalenko, S.I., Voloshin, A.V., Pakhomovskii, Y.A., Anen'yev, S.S., Perlina, G.A., Rogachev, D.L., Kuznetsov, V.Y. (1983) Tusionite, MnSn(BO3)2, a new borate from granite pegmatite of southwestern Pamir. Doklady Akademii Nauk SSSR, 272, 1449-1453.

Konovalenko, S. I., Voloshin, A. V., Pakhomovskiy, Ya. A., Anen'yev, S. S., Perlina, G. A., Rogachev, D. L., Kuznetsov, V. Ya. (1984) Tusionite, MnSn(BO3)2, a new Borate from Granite Pegmatite of Southwestern Pamir. International Geology Review, 26 (4) 481-485 doi:10.1080/00206818409466576

Dunn, P.J., Cabri, L.J., Ferraiolo, J.A., Grice, J.D., Jambor, J.L., Mueller, W., Shigley, J.E., Puziewicz, J., Vanko, D.A. (1984) New mineral names. American Mineralogist, 69, 1190-1196 (1193).

Cooper, M., Hawthorne, F. C., Novák, M., Taylor, M. C. (1994) The crystal structure of tusionite, Mn2+Sn4+(BO3)2, a dolomite-structure borate. The Canadian Mineralogist, 32 (4) 903-907

Localities for TusioniteHide

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This 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.

Locality ListHide

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