Yafsoanite Mineral Data

Yafsoanite Mineral Data +

We specialise in top quality, fine minerals from Morocco, Namibia,
South Africa, Pakistan, Democratic Republic of Congo (ZaÃƒï¿½Ã‚Â¯re) and China
Worldwide Fine Minerals by B & C GOBIN

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:

Ca₃Te₂Zn₃O₁₂

IMA Status:

Approved IMA 1982

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 64791

PDF 35-661

Search for Yafsoanite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Yafsoanite Crystallography

Cell Dimensions:

a = 12.632, Z = 8; V = 2,015.66 Den(Calc)= 5.03

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: I a3d

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

By Intensity(I/I_o): 1.683(1), 2.58(1), 2.82(0.9),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Rozhdestvenskaya I V , Zajakina N V , Kim A A , Mineralogiceskij Zhurnal , 6 (1984) p.75-79, Crystal structure of a zinc calcium tellurate - yafsoanite

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

Optical Data:

Isotropic, n=1.8.

Calculated Properties of Yafsoanite

Electron Density:

r_electron=4.61 gm/cc
note: r_Yafsoanite=5.03 gm/cc.

Fermion Index

Fermion Index = 0.03756
Boson Index = 0.96244

Photoelectric:

PE_Yafsoanite= 127.37 barns/electron
U=PE_Yafsoanite x r_electron= 587.31 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Yafsoanite is Not Radioactive

Yafsoanite Classification

Dana Class:

7.2.14.1 (7)Multiple Oxides

(7.2)(A+ B++)2 X4 Spinel group

(7.2.14)Dana Group

7.2.14.1 Yafsoanite Ca3Te2Zn3O12 I a3d 4/m 3 2/m

Strunz Class:

IV/K.15-30 IV - Oxides

IV/K - Complex Tellurides with [TeO6]6-, [TeO3]2- and [TeO4]2- groups

IV/K.15 - Yafsoanite - Cuzticite series

IV/K.15-10 Frankhawthorneite Cu2TeO4(OH)2 P 2₁/n 2/m

IV/K.15-12 Xocomecatlite Cu3TeO4(OH)4 Unk Ortho

IV/K.15-15 Mcalpineite Cu3TeO6·(H2O) Unk Cubic

IV/K.15-16 Jensenite Cu3TeO6·2(H2O) P 2₁/n 2/m

IV/K.15-18 Leisingite! Cu(Mg,Cu,Fe,Zn)2TeO6·6(H2O) P 31m 3 2/m

IV/K.15-19 Utahite! Cu5Zn3(TeO4)4(OH)8·7(H2O) P1 or P1 Tri

IV/K.15-20 Cuzticite Fe2TeO6·3(H2O) Unk Hex

IV/K.15-30 Yafsoanite Ca3Te2Zn3O12 I a3d 4/m 3 2/m

IV/K.15-40 Khinite PbCu3TeO6(OH)2 F ddd 2/m 2/m 2/m

IV/K.15-50 Parakhinite Cu3PbTeO4(OH)6 P 6₂22 or P 6₄22 6 2 2

IV/K.15-60 Montanite Bi2TeO6·2(H2O) Mono

Other Yafsoanite Information

References:

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 -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 - WWW-MINCRYST 13 -École des Mines de Paris

Search for Yafsoanite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Yafsoanite :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Yafsoanite Mineral Data :

Ask about Yafsoanite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Yafsoanite Specimen Label here :

Yafsoanite

Ca3Te2Zn3O12
Dana No: 7.2.14.1 Strunz No: IV/K.15-30
Locality:

Notes: