Onoratoite
A valid IMA mineral species
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About Onoratoite
Ettore Onorato
Formula:
Sb8Cl2O11
Colour:
White
Specific Gravity:
5.3
Crystal System:
Triclinic
Name:
Named in honour of Ettore Onorato (8 February 1899, Lucera, Foggia, Italy - 31 October 1971, Rome, Italy), mineralogist who worked at the universities of Cagliari, Genoa, and Rome. He also helped set up a mineralogical museum in São Paulo, Brazil.
This page provides mineralogical data about Onoratoite.
Unique Identifiers
Mindat ID:
2997
Long-form identifier:
mindat:1:1:2997:7
IMA Classification of Onoratoite
Approved
IMA Formula:
Sb3+8O11Cl2
Approval year:
1967
First published:
1968
Classification of Onoratoite
3.DC.80
3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
C : With Pb (As,Sb,Bi), without Cu
3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
C : With Pb (As,Sb,Bi), without Cu
10.5.7.1
10 : OXYHALIDES AND HYDROXYHALIDES
5 : Am(O,OH)pXq
10 : OXYHALIDES AND HYDROXYHALIDES
5 : Am(O,OH)pXq
8.9.1
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
9 : Halides of Sb and Bi
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
9 : Halides of Sb and Bi
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Ono | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Onoratoite
Transparency:
Transparent
Colour:
White
Streak:
White
Density:
5.3 g/cm3 (Measured) 5.49 g/cm3 (Calculated)
Optical Data of Onoratoite
Type:
Biaxial (-)
Dispersion:
relatively strong
Optical Extinction:
X ∧ c ≃ 12°; Y ∧ a ≃ 8°; Z ∧ b ≃ 0°–14°.
Chemistry of Onoratoite
Mindat Formula:
Sb8Cl2O11
Element Weights:
Elements listed:
Crystallography of Onoratoite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 10.317 Å, b = 11.269 Å, c = 13.939 Å
α = 79.29°, β = 76.29°, γ = 73°
α = 79.29°, β = 76.29°, γ = 73°
Ratio:
a:b:c = 0.916 : 1 : 1.237
Unit Cell V:
1,493.72 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Needle-like, elongated along [010]. Forms include {001}, {100}, {201}, {401}, {412}.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0009996 | Onoratoite | Menchetti S, Sabelli C, Trosti-Ferroni R (1984) The structures of onoratoite, Sb8O11Cl2 and Sb8O11Cl2*6H2O Acta Crystallographica C40 1506-1510 |  | 1984 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.190 Å | (100) |
| 2.677 Å | (60) |
| 3.041 Å | (50) |
| 2.822 Å | (50) |
| 2.598 Å | (30) |
| 2.544 Å | (30) |
| 1.807 Å | (30) |
Comments:
Cetine mine, Italy. The data are from Belluomini et al. (1969).
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] | |
| 47g : [Halogen-bearing surface weathering minerals] | |
| 47h : [Near-surface oxidized, dehydrated minerals] | |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 57 : Other minerals formed by human processes |
Type Occurrence of Onoratoite
General Appearance of Type Material:
Needle-like crystals on stibnite, sometimes with an intermediate layer of stibiconite.
Place of Conservation of Type Material:
Istituto di Mineralogia e Petrografia dell’Università, Cita Universitaria, Rome, Italy, number 24308 (type).
Geological Setting of Type Material:
Oxidation product in a Quaternary antimony deposit.
Associated Minerals at Type Locality:
Synonyms of Onoratoite
Other Language Names for Onoratoite
Common Associates
Associations Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
| 3.DC. | Gajardoite | KCa0.5As3+4O6Cl2 · 5H2O |
| 3.DC. | Lucabindiite | (K,NH4)As4O6(Cl,Br) |
| 3.DC. | Cuatrocapaite-(NH4) | (NH4)3(NaMg◻)(As2O3)6Cl6 · 16H2O |
| 3.DC. | Cuatrocapaite-(K) | K3(NaMg◻)(As2O3)6Cl6 · 16H2O |
| 3.DC. | Napoliite | Pb2OFCl |
| 3.DC. | Torrecillasite | Na(As,Sb)3+4O6Cl |
| 3.DC.05 | Paralaurionite | PbCl(OH) |
| 3.DC.05 | Laurionite | PbCl(OH) |
| 3.DC.05 | Mauriziodiniite | (NH4)(As2O3)2I |
| 3.DC.05 | Russoite | (NH4)ClAs2O3(H2O)0.5 |
| 3.DC.10 | Fiedlerite | Pb3FCl4(OH) · H2O |
| 3.DC.15 | Penfieldite | Pb2Cl3(OH) |
| 3.DC.15 | Telluroperite | Pb3TeO4Cl2 |
| 3.DC.20 | Laurelite | Pb7F12Cl2 |
| 3.DC.25 | Zhangpeishanite | BaFCl |
| 3.DC.25 | Matlockite | PbFCl |
| 3.DC.25 | Zavaritskite | (BiO)F |
| 3.DC.25 | Rorisite | CaFCl |
| 3.DC.25 | Bismoclite | BiOCl |
| 3.DC.25 | Vegrandisite | BaCl2 |
| 3.DC.30 | Nadorite | PbSbClO2 |
| 3.DC.30 | Perite | PbBiClO2 |
| 3.DC.40 | Thorikosite | Pb3Cl2(OH)(SbO3,AsO3) |
| 3.DC.45 | Mereheadite | Pb47Cl25(OH)13O24(CO3)(BO3)2 |
| 3.DC.50 | Blixite | Pb8O5(OH)2Cl4 |
| 3.DC.52 | Rumseyite | Pb2OClF |
| 3.DC.55 | Vladkrivovichevite | [Pb32O18][Pb4Mn2O]Cl14(BO3)8 · 2H2O |
| 3.DC.55 | Pinalite | Pb3WO5Cl2 |
| 3.DC.57 | Yeomanite | Pb2O(OH)Cl |
| 3.DC.60 | Symesite | Pb10(SO4)O7Cl4 · H2O |
| 3.DC.60 | 'Lorettoite' | Pb7O6Cl2 |
| 3.DC.62 | 'Sarawakite (of Frenzel)' | Sb, O, Cl (?) |
| 3.DC.65 | Ecdemite | Pb6As3+2O7Cl4 |
| 3.DC.70 | Mendipite | Pb3Cl2O2 |
| 3.DC.75 | Damaraite | Pb3Cl(OH)O2 |
| 3.DC.95 | Barstowite | Pb4Cl6(CO3) · H2O |
Other Information
Thermal Behaviour:
In a closed tube, gives off SbCl3 vapours that condense on the walls of the tube in the form of oily drops, leaving a residue of antimony oxides.
Notes:
Insoluble in water. Completely soluble in 6N HCl. With nitric acid it yields a white antimony pentoxide residue and the solution reacts for Cl- ions. Soluble in strong NaOH and in concentrated tartaric acid solution.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Onoratoite
mindat.org URL:
https://www.mindat.org/min-2997.html
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References for Onoratoite
Reference List:
Belluomini, G., Fornaseri, M., Nicoletti, M. (1968) Onoratoite, a new antimony oxychloride, from Cetine di Cotorniano, Rosia (Siena, Italy) Mineralogical Magazine and Journal of the Mineralogical Society, 36 (284) 1037-1044 doi:10.1180/minmag.1968.036.284.01
Menchetti, S., Sabelli, C., Trosti-Ferroni, R. (1984) The structures of onoratoite, Sb8O11Cl2 and Sb8O11Cl2·6H2O. Acta Crystallographica Section C Crystal Structure Communications, 40 (9) 1506-1510 doi:10.1107/s0108270184008532
Dunn, Pete J., Gobel, Volker, Grice, Joel D., Puziewicz, Jacek, Shigley, James E., Vanko, David A., Zilczer, Janet (1985) New mineral names. American Mineralogist, 70 (3-4) 436-441
Localities for Onoratoite
Showing 4 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Bolivia | |
| Pastor et al. (2015) |
Italy | |
| Brizzi G. (1985) +1 other reference |
| Belluomini et al. (1968) +1 other reference |
South Africa | |
| Meulenbeld et al. (2014) |
Quick NavTopAbout OnoratoiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy