General Tausonite Information
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Chemical Formula: |
SrTiO3 |
Composition: |
Molecular Weight = 183.50 gm |
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Strontium 47.75 % Sr 56.47 % SrO |
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Titanium 26.09 % Ti 43.53 % TiO2 |
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Oxygen 26.16 % O |
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______ ______ |
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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 |
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PDF 35-734 |
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Tausonite Image |
Images:
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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 |
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Tausonite Crystallography
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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 |
X Ray Diffraction: |
By Intensity(I/Io): 2.76(1), 2.77(1), 1.952(0.5), |
Crystal Structure:
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Help on Above
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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]
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Physical Properties of Tausonite
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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 |
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Optical Properties of Tausonite
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Optical Data: |
Isotropic. |
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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 |
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Calculated Properties of Tausonite
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Electron Density: |
relectron=4.69 gm/cc note: rTausonite =5.12 gm/cc. |
Fermion Index |
Fermion Index = 0.06728 Boson Index = 0.93272 |
Photoelectric: |
PETausonite = 59.62 barns/electron U=PETausonite x relectron= 279.47 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Tausonite is Not Radioactive |
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Tausonite Classification
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Dana Class: |
4.3.3.5 (4)Simple Oxides |
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(4.3)with a cation charge of 3+ (A+++2 O3) |
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(4.3.3)Dana Group |
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4.3.3.1 Perovskite CaTiO3 P nma 2/m 2/m 2/m |
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4.3.3.2 Latrappite (Ca,Na)(Nb,Ti,Fe)O3 Pcmn 2/m 2/m 2/m |
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4.3.3.3 Loparite-(Ce) (Ce,Na,Ca)2(Ti,Nb)2O6 P m3m 4/m 3 2/m |
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4.3.3.4 Lueshite NaNbO3 P 2221 2 2 2 |
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4.3.3.5 Tausonite SrTiO3 P m3m 4/m 3 2/m |
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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 |
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IV/C - Oxides with metal : oxygen = 2:3 (M2O3 and related compounds) |
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IV/C.10 - Perowskite series |
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IV/C.10-10 Uhligite Ca3(Ti,Al,Zr)9O20 Unk Cubic |
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IV/C.10-20 Perovskite CaTiO3 P nma 2/m 2/m 2/m |
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IV/C.10-30 Latrappite (Ca,Na)(Nb,Ti,Fe)O3 Pcmn 2/m 2/m 2/m |
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IV/C.10-40 Tausonite SrTiO3 P m3m 4/m 3 2/m |
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IV/C.10-50 Loparite-(Ce) (Ce,Na,Ca)2(Ti,Nb)2O6 P m3m 4/m 3 2/m |
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IV/C.10-55 Isolueshite! (Na,La,Ca)(Nb,Ti)O3 P m3m 4/m 3 2/m |
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IV/C.10-60 Lueshite NaNbO3 P 2221 2 2 2 |
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IV/C.10-70 Natroniobite NaNbO3 Mono |
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IV/C.10-80 Macedonite PbTiO3 P 4/mmm 4/m 2/m 2/m |
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Other Tausonite Information
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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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Print or Cut-and-Paste your Tausonite Specimen Label here :
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Tausonite
SrTiO3
Dana No: 4.3.3.5 Strunz No: IV/C.10-40
Locality:
Notes:
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