Onoratoite Mineral Data

Onoratoite Mineral Data +

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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.

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 - PrismaticH-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

Optical Data:

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

Calculated Properties of Onoratoite

Electron Density:

r_electron=4.71 gm/cc
note: r_Onoratoite=5.43 gm/cc.

Fermion Index

Fermion Index = 0.00006
Boson Index = 0.99994

Photoelectric:

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

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Onoratoite is Not Radioactive

Onoratoite Classification

Dana Class:

10.5.7.1 (10)Oxyhalides and Hydroxyhalides

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

(10.5.7)Dana Group

10.5.7.1 Onoratoite Sb8O11Cl2 C 2/m 2/m

Strunz Class:

III/D.11-120 III - Halogenides

III/D - Oxi-halogenides with Pb - Bi - Sb and related compounds

III/D.11 - Mendipite - Onoratoite series

III/D.11-10 Mendipite Pb3Cl2O2 P 2₁2₁2₁ 2 2 2

III/D.11-15 Damaraite Pb3O2(OH)Cl Pmc2 mm2

III/D.11-17 Chubutite* Pb7O6Cl2 Unk Ortho

III/D.11-20 Penfieldite Pb2Cl3(OH) P 6/mmm 6/m 2/m 2/m

III/D.11-30 Blixite Pb2Cl(O,OH)2 Unk Ortho

III/D.11-35 Mereheadite! Pb2O(OH)Cl C 2/c 2/m

III/D.11-40 Sundiusite Pb10(SO4)Cl2O8 C 2,Cm,C 2/m Mono

III/D.11-50 Asisite Pb12(SiO4)O8Cl4 I 4/mmm 4/m 2/m 2/m

III/D.11-55 Parkinsonite (Pb,Mo,[])8O8Cl2 I 4/mmm 4/m 2/m 2/m

III/D.11-60 Thorikosite Pb3(Sb,As)O3(OH)Cl2 I 4/mmm 4/m 2/m 2/m

III/D.11-65 Philolithite! Pb12O6Mn(Mg,Mn)2(Mn,Mg)4(SO4)(CO3)4Cl4(OH)12 P 4₁/nnm 4/m 2/m 2/m

III/D.11-70 Pinalite Pb3(WO4)OCl2 Amam 2/m 2/m 2/m

III/D.11-80 Nadorite PbSbO2Cl Bmmb 2/m 2/m 2/m

III/D.11-90 Perite PbBiO2Cl Bmmb 2/m 2/m 2/m

III/D.11-100 Heliophyllite Pb6As2O7Cl4 Unk Ortho

III/D.11-110 Ecdemite Pb6As2O7Cl4 Unk Tetra

III/D.11-120 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 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
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: 10.5.7.1 Strunz No: III/D.11-120
Locality:

Notes: