Onoratoite Mineral Data

General Onoratoite Information

Chemical Formula:

Sb8O11Cl2

Composition:

Molecular Weight = 1,220.90 gm

Antimony 79.78 % Sb 95.50 % Sb₂O₃

Chlorine 5.81 % Cl 5.81 % Cl

- % Cl -1.31 % -O=Cl₂

Oxygen 14.42 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Sb₈O₁₁Cl₂

Environment:

Alteration product of stibnite.

IMA Status:

Approved IMA 1968

Locality:

Cetine di Cotorniano mine, Rosia, Siena, Toscana (Tuscany), Italy Link to MinDat.org Location Data.

Name Origin:

Named for Ettore Onorato (1899-1971), Italian mineralogist, University of Rome, Italy.

Name Pronunciation:

Onoratoite + Pronunciation

Synonym:

ICSD 49593

PDF 21-52

Onoratoite Image

Images:

Onoratoite

Comments: White crystals of onoratoite with a yellow crystal of sulphur.
Location: Cetine di Cotorniano Mine (Cetine Mine; Tafone Mine), Rosia, Siena, Tuscany, Italy. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Onoratoite Crystallography

Axial Ratios:

a:b:c =4.6994:1:2.5457

Cell Dimensions:

a = 19.047, b = 4.053, c = 10.318, Z = 2; beta = 110.25° V = 747.29 Den(Calc)= 5.43

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m

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

By Intensity(I/I_o): 3.19(1), 4.39(0.65), 2.677(0.6),

Physical Properties of Onoratoite

Color:

White.

Density:

5.3

Habit:

Acicular - Occurs as needle-like crystals.

Habit:

Bladed - Aggregates of thin lath-like crystals (e.g. kyanite).

Hardness:

3 - Calcite

Streak:

white

Optical Properties of Onoratoite

Gladstone-Dale:

CI meas= -0.089 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.063 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2256,KPDmeas= 0.2311,KC= 0.2122
Ncalc = 2.12 - 2.15

Optical Data:

Biaxial (-), b=2.18-2.23, g=2.23-2.26,

Calculated Properties of Onoratoite

Electron Density:

Bulk Density (Electron Density)=4.71 gm/cc
note: Specific Gravity of Onoratoite =5.43 gm/cc.

Fermion Index:

Fermion Index = 0.0000691923
Boson Index = 0.9999308077

Photoelectric:

PE_Onoratoite= 270.64 barns/electron
U=PE_Onoratoite x rElectron Density=1,275.89 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Onoratoite is Not Radioactive

Onoratoite Classification

Dana Class:

10.05.07.01 (10)Oxyhalides and Hydroxyhalides

(10.05)where Am (O,OH)p Xq

(10.05.07)Dana Group

10.05.07.01 Onoratoite Sb8O11Cl2 C 2/m 2/m

Strunz Class:

03.DC.80 03 - HALIDES

03.D - Oxyhalides, Hydroxyhalides and Related Double Halides

03.DC -With Pb (As,Sb,Bi), without Cu

03.DC.80 Onoratoite Sb8O11Cl2 C 2/m 2/m

Other Onoratoite Information

References:

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

See Also:

Links to other databases for Onoratoite :
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 Onoratoite Specimen Label here :

Onoratoite

Sb8O11Cl2
Dana No: 10.05.07.01 Strunz No: 03.DC.80
Locality:

Notes:

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