Yafsoanite Mineral Data
General Yafsoanite Information
Chemical Formula:
Ca3Te2Zn3O12
Composition:
Molecular Weight = 763.60 gm
Calcium 15.75 % Ca 22.03 % CaO
Zinc 25.69 % Zn 31.98 % ZnO
Tellurium 33.42 % Te 41.80 % TeO2
Oxygen 25.14 % O
______ ______
100.00 % 95.81 % = TOTAL OXIDE
Empirical Formula:
Ca3 Te2 Zn3 O12
Environment:
Tellurium-bearing gold quartz deposit in dolomite-calcite.
IMA Status:
Approved IMA 1982
Locality:
Kuranakh gold deposit, near Aldan, southern Sakha, Russia. Link to MinDat.org Location Data.
Name Origin:
Named for Yakutskii Filial Sibirskogo Otdeleniya Akademii Nauk (Yakut Filial, Siberian Branch, Academy of Sciences, YAFSOAN in Russian).
Name Pronunciation:
Yafsoanite + Pronunciation
Synonym:
ICSD 64791
PDF 35-661
Yafsoanite Crystallography
Cell Dimensions:
a = 12.632, Z = 8; V = 2,015.66 Den(Calc)= 5.03
Crystal System:
Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d
X Ray Diffraction:
By Intensity(I/Io ): 1.683(1), 2.58(1), 2.82(0.9),
Physical Properties of Yafsoanite
Color:
Light brown, Dark brown.
Density:
5.55
Hardness:
5.5 - Knife Blade
Luster:
Vitreous (Glassy)
Optical Properties of Yafsoanite
Gladstone-Dale:
CI meas = 0.203 (Poor) - where the CI = (1-KPDmeas /KC ) CI calc = 0.12 (Poor) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.159,KPDmeas = 0.1441,KC = 0.1808 Ncalc = 1.91 - 2
Optical Data:
Isotropic, n=1.8.
Calculated Properties of Yafsoanite
Electron Density:
Bulk Density (Electron Density)=4.61 gm/cc note: Specific Gravity of Yafsoanite =5.03 gm/cc.
Fermion Index:
Fermion Index = 0.03 Boson Index = 0.97
Photoelectric:
PEYafsoanite = 127.37 barns/electronU=PEYafsoanite x r Electron Density= 587.31 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Yafsoanite is Not Radioactive
Yafsoanite Classification
Dana Class:
07.02.14.01 (07) Multiple Oxides
(07.02) (A+ B++)2 X4 Spinel group
(07.02.14) Dana Group
07.02.14.01 Yafsoanite Ca3Te2Zn3O12 I a3d 4/m 3 2/m
Strunz Class:
04.CC.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
04.C - Metal:Oxygen = 2:3, 3:5, and Similar
04.CC -With large and medium-sized cations
04.CC.25 Yafsoanite Ca3Te2Zn3O12 I a3d 4/m 3 2/m
Other Yafsoanite Information
References:
NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
See Also:
Links to other databases for Yafsoanite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST
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Print or Cut-and-Paste your Yafsoanite Specimen Label here :
Yafsoanite
Ca3Te2Zn3O12
Dana No: 07.02.14.01 Strunz No: 04.CC.25
Locality:
Notes: