Onoratoite
A valid IMA mineral species
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About Onoratoite
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
GUID
(UUID V4):
(UUID V4):
042f8697-c79a-4ff3-b874-debc485ce7f6
IMA Classification of Onoratoite
Approved
IMA Formula:
Sb8O11Cl2
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 |
---|---|---|
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
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:
Reference:
Belluomini, G., Fornasieri, M, Nicoletti, M. (1968) Onoratoite, a new antimony oxichloride from Cetine di Cotorniano, Rosia, (Siena). Mineralogical Magazine: 36: 1037-1044.
Synonyms of Onoratoite
Other Language Names for Onoratoite
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
3.DC. | Lucabindiite | (K,NH4)As4O6(Cl,Br) |
3.DC. | Torrecillasite | Na(As,Sb)3+4O6Cl |
3.DC. | Gajardoite | KCa0.5As3+4O6Cl2 · 5H2O |
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.05 | Laurionite | PbCl(OH) |
3.DC.05 | Paralaurionite | PbCl(OH) |
3.DC.05 | Russoite | (NH4)ClAs2O3(H2O)0.5 |
3.DC.05 | Mauriziodiniite | (NH4)(As2O3)2I |
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 | Bismoclite | BiOCl |
3.DC.25 | Matlockite | PbFCl |
3.DC.25 | Rorisite | CaFCl |
3.DC.25 | Zavaritskite | (BiO)F |
3.DC.25 | Zhangpeishanite | BaFCl |
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 | Pinalite | Pb3WO5Cl2 |
3.DC.55 | Vladkrivovichevite | [Pb32O18][Pb4Mn2O]Cl14(BO3)8 · 2H2O |
3.DC.57 | Yeomanite | Pb2O(OH)Cl |
3.DC.60 | Lorettoite | Pb7O6Cl2 |
3.DC.60 | Symesite | Pb10(SO4)O7Cl4 · H2O |
3.DC.62 | Sarawakite (of Frenzel) | Sb, O, Cl (?) |
3.DC.65 | Ecdemite | Pb6Cl4(As2O7) |
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:
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
Localities for Onoratoite
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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Bolivia | |
| Pastor et al. (2015) |
Italy | |
| Brizzi G. (1985) +1 other reference |
| Belluomini G. et al. (Siena) +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