Tausonite Mineral Data

Tausonite Mineral Data +

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General Tausonite Information

Chemical Formula:

SrTiO3

Composition:

Molecular Weight = 183.50 gm

Strontium 47.75 % Sr 56.47 % SrO

Titanium 26.09 % Ti 43.53 % TiO₂

Oxygen 26.16 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

SrTiO₃

Environment:

Alkalic igneous rocks. Close to loparite unit cell.

IMA Status:

Approved IMA 1984

Locality:

Murunskii massif, Aldan, Siberia, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for L. V. Tauson (1917-1989), Russian geochemist.

Synonym:

ICSD 201256

PDF 35-734

Tausonite Image

Images:

Tausonite

Comments: Brown crystal of tausonite in matrix.
Location: Murun massif, Chara River, Davan, Torgo River Basin, Aldan Shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Tausonite Crystallography

Cell Dimensions:

a = 3.9048, Z = 1; V = 59.54 Den(Calc)= 5.12

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: P m3m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.76(1), 2.77(1), 1.952(0.5),

Crystal Structure:

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Yamanaka T , Hirai M , Komatsu Y , American Mineralogist , 87 (2002) p.1183-1189, Structure change of Ca1-xSrxTiO3 perovskite with composition and pressure, Sample: Ca.4Sr.6TiO3, x = 0.6

View Additional jPOWD Structure files for Tausonite
[1] [10] [11] [2] [3] [4] [5] [6] [7] [8] [9]

Physical Properties of Tausonite

Cleavage:

None

Color:

Brown red, Gray, Dark red, Red, Reddish brown.

Density:

4.88

Diaphaniety:

Translucent to Opaque

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Habit:

Cubic Crystals - Occurs as cubic shaped crystals.

Habit:

Octahedral Crystals - Occurs as octahedral shaped crystals.

Hardness:

6-6.5 - Orthoclase-Pyrite

Luster:

Adamantine

Streak:

brownish white

Optical Properties of Tausonite

Optical Data:

Isotropic.

NCalc= 2.3 - from Gladstone-Dale relationship (KC = 0.253) where Ncalc=Dcalc*KC+1
NCalc= 2.23 - from Gladstone-Dale relationship (KC = 0.253) where Ncalc=Dmeas*KC+1

Calculated Properties of Tausonite

Electron Density:

r_electron=4.69 gm/cc
note: r_Tausonite=5.12 gm/cc.

Fermion Index

Fermion Index = 0.06728
Boson Index = 0.93272

Photoelectric:

PE_Tausonite= 59.62 barns/electron
U=PE_Tausonite x r_electron= 279.47 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Tausonite is Not Radioactive

Tausonite Classification

Dana Class:

4.3.3.5 (4)Simple Oxides

(4.3)with a cation charge of 3+ (A+++2 O3)

(4.3.3)Dana Group

4.3.3.1 Perovskite CaTiO3 P nma 2/m 2/m 2/m

4.3.3.2 Latrappite (Ca,Na)(Nb,Ti,Fe)O3 Pcmn 2/m 2/m 2/m

4.3.3.3 Loparite-(Ce) (Ce,Na,Ca)2(Ti,Nb)2O6 P m3m 4/m 3 2/m

4.3.3.4 Lueshite NaNbO3 P 222₁ 2 2 2

4.3.3.5 Tausonite SrTiO3 P m3m 4/m 3 2/m

4.3.3.6 Isolueshite! (Na,La,Ca)(Nb,Ti)O3 P m3m 4/m 3 2/m

Strunz Class:

IV/C.10-40 IV - Oxides

IV/C - Oxides with metal : oxygen = 2:3 (M2O3 and related compounds)

IV/C.10 - Perowskite series

IV/C.10-10 Uhligite Ca3(Ti,Al,Zr)9O20 Unk Cubic

IV/C.10-20 Perovskite CaTiO3 P nma 2/m 2/m 2/m

IV/C.10-30 Latrappite (Ca,Na)(Nb,Ti,Fe)O3 Pcmn 2/m 2/m 2/m

IV/C.10-40 Tausonite SrTiO3 P m3m 4/m 3 2/m

IV/C.10-50 Loparite-(Ce) (Ce,Na,Ca)2(Ti,Nb)2O6 P m3m 4/m 3 2/m

IV/C.10-55 Isolueshite! (Na,La,Ca)(Nb,Ti)O3 P m3m 4/m 3 2/m

IV/C.10-60 Lueshite NaNbO3 P 222₁ 2 2 2

IV/C.10-70 Natroniobite NaNbO3 Mono

IV/C.10-80 Macedonite PbTiO3 P 4/mmm 4/m 2/m 2/m

Other Tausonite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Tausonite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Tausonite

SrTiO3
Dana No: 4.3.3.5 Strunz No: IV/C.10-40
Locality:

Notes: