Tazheranite Mineral Data

Tazheranite Mineral Data +

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General Tazheranite Information

Chemical Formula:

CaTiZr2O8

Composition:

Molecular Weight = 398.40 gm

Calcium 10.06 % Ca 14.08 % CaO

Zirconium 45.80 % Zr 61.86 % ZrO₂

Titanium 12.02 % Ti 20.05 % TiO₂

Oxygen 32.13 % O

______ ______

100.00 % 95.98 % = TOTAL OXIDE

Empirical Formula:

CaTiZr₂O₈

Environment:

Within bands of periclase-brucite marbles. Cubic modification of baddeleyite (ZrO2).

IMA Status:

Approved IMA 1969

Locality:

Tazheran alkalic massif., W of Lake Baikal, Siberia, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Tazheranite Image

Images:

Tazheranite

Comments: Brown grain of tazheranite in matrix.
Location: Tazheran Massif, Lake Baikal area, Irkutskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Tazheranite Crystallography

Cell Dimensions:

a = 5.111, Z = 1; V = 133.51 Den(Calc)= 4.95

Crystal System:

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

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

By Intensity(I/I_o): 1.539(1), 1.804(1), 2.94(1),

Physical Properties of Tazheranite

Cleavage:

None

Color:

Yellow orange, Cherry red, Red, Red orange.

Density:

5.01

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

7.5 - Garnet

Luminescence:

Non-fluorescent.

Luster:

Adamantine - Greasy

Magnetism:

Nonmagnetic

Streak:

white

Optical Properties of Tazheranite

Gladstone-Dale:

CI meas= -0.128 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.142 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2727,KPDmeas= 0.2695,KC= 0.2389

Optical Data:

Isotropic, n=2.35.

Calculated Properties of Tazheranite

Electron Density:

r_electron=4.68 gm/cc
note: r_Tazheranite=5.01 gm/cc.

Fermion Index

Fermion Index = 0.06721
Boson Index = 0.93279

Photoelectric:

PE_Tazheranite= 66.40 barns/electron
U=PE_Tazheranite x r_electron= 310.64 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Tazheranite is Not Radioactive

Tazheranite Classification

Dana Class:

4.4.13.1 (4)Simple Oxides

(4.4)with a cation charge of 4+ (A++++ O2)

(4.4.13)Dana Group

4.4.13.1 Tazheranite CaTiZr2O8 F m3m 4/m 3 2/m

4.4.13.2 Srilankite (Ti,Zr)O2 P bcn 2/m 2/m 2/m

Strunz Class:

IV/D.31-20 IV - Oxides

IV/D - Oxides with metal : oxygen = 1:2 (MO2 and related compounds)

IV/D.31 - Badleyite - Uraninite series

IV/D.31-10 Baddeleyite ZrO2 P 2₁/c 2/m

IV/D.31-20 Tazheranite CaTiZr2O8 F m3m 4/m 3 2/m

IV/D.31-30 Calzirtite CaZr3TiO9 P bca 2/m 2/m 2/m

IV/D.31-35 Hiarneite! (Ca,Mn,Na)2(Zr,Mn)5(Sb,Ti,Fe)2O16 I 4₁/acd 4/m 2/m 2/m

IV/D.31-40 Cerianite-(Ce) (Ce,Th)O2 F m3m 4/m 3 2/m

IV/D.31-50 Thorianite ThO2 F m3m 4/m 3 2/m

IV/D.31-60 Uraninite UO2 F m3m 4/m 3 2/m

Other Tazheranite Information

References:

NAME( Dana8) PHYS. PROP.(AmMin, V84) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

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

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Tazheranite

CaTiZr2O8
Dana No: 4.4.13.1 Strunz No: IV/D.31-20
Locality:

Notes: