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About OnoratoiteHide

Ettore Onorato
Specific Gravity:
Crystal System:
Named in honour of Ettore Onorato (8 February 1899, Lucera, Foggia, Italy - 31 October 1971, Rome, Italy) mineralogist who worked variously at the universities of Cagliari, Genoa, and Rome. He also helped set up a mineralogical museum in Sao Paulo, Brazil.
This page provides mineralogical data about Onoratoite.

Classification of OnoratoiteHide

Approval Year:
First Published:

D : Oxyhalides, hydroxyhalides and related double halides
C : With Pb (As,Sb,Bi), without Cu

5 : Am(O,OH)pXq

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
9 : Halides of Sb and Bi

Physical Properties of OnoratoiteHide

5.3 g/cm3 (Measured)    5.49 g/cm3 (Calculated)

Optical Data of OnoratoiteHide

Biaxial (-)
relatively strong

Chemical Properties of OnoratoiteHide

IMA Formula:

Crystallography of OnoratoiteHide

Crystal System:
Class (H-M):
1 - Pinacoidal
Space Group:
Cell Parameters:
a = 10.317 Å, b = 11.269 Å, c = 13.939 Å
α = 79.29°, β = 76.29°, γ = 73°
a:b:c = 0.916 : 1 : 1.237
Unit Cell V:
1,493.72 ų (Calculated from Unit Cell)
Needle-like, elongated along [010]. Forms include {001}, {100}, {201}, {401}, {412}.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0009996OnoratoiteMenchetti S, Sabelli C, Trosti-Ferroni R (1984) The structures of onoratoite, Sb8O11Cl2 and Sb8O11Cl2*6H2O Acta Crystallographica C40 1506-15101984synthetic0293
CIF Raw Data - click here to close

Type Occurrence of OnoratoiteHide

General Appearance of Type Material:
Needle-like crystals on stibnite, sometimes with an intermediate layer of stibiconite
Geological Setting of Type Material:
Old antimony mine in quaternary antimony deposits.
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 OnoratoiteHide

Other Language Names for OnoratoiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Onoratoite associated with StibniteSb2S3
1 photo of Onoratoite associated with SulphurS8
1 photo of Onoratoite associated with QuartzSiO2
1 photo of Onoratoite associated with GypsumCaSO4 · 2H2O

Related Minerals - Nickel-Strunz GroupingHide

3.DC.05LaurionitePbCl(OH)Orth. mmm (2/m 2/m 2/m)
3.DC.05ParalaurionitePbCl(OH)Mon. 2/m : B2/m
3.DC.10FiedleritePb3FCl4(OH) · H2OMon. 2/m
3.DC.15PenfielditePb2Cl3(OH)Hex. 6 : P6
3.DC.20LaurelitePb7F12Cl2Hex. 6 : P6
3.DC.25BismocliteBiOClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.DC.25Daubréeite(BiO)(OH,Cl)Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.DC.25MatlockitePbFClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.DC.25ZhangpeishaniteBaFClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.DC.30NadoritePbSbClO2Orth. mmm (2/m 2/m 2/m) : Cmcm
3.DC.30PeritePbBiClO2Orth. mmm (2/m 2/m 2/m) : Cmcm
3.DC.35AravaipaitePb3AlF9 · H2OTric.
3.DC.37CalcioaravaipaitePbCa2AlF9Tric. 1
3.DC.40ThorikositePb3Cl2(OH)(SbO3,AsO3)Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.DC.45MereheaditePb47Cl25(OH)13O24(CO3)(BO3)2Mon. m
3.DC.60SymesitePb10(SO4)O7Cl4 · H2OTric. 1 : P1
3.DC.65EcdemitePb6Cl4(As2O7)Mon. 2 : P21
3.DC.70MendipitePb3Cl2O2Orth. 2 2 2 : P21 21 21
3.DC.75DamaraitePb3Cl(OH)O2Orth. mm2 : Pmc21
3.DC.85CotunnitePbCl2Orth. mmm (2/m 2/m 2/m)
3.DC.95BarstowitePb4Cl6(CO3) · H2OMon. 2/m : P21/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

8.9.2Kelyanite[Hg2]2+6Sb3+BrCl2O6Trig. 3
8.9.5BismocliteBiOClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
8.9.6Daubréeite(BiO)(OH,Cl)Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
8.9.7PeritePbBiClO2Orth. mmm (2/m 2/m 2/m) : Cmcm

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for OnoratoiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Fornaseri, M. (1947) Rendiconti, Accademia Nazionale dei Lincei, ser. 8: 3: 365.
Belluomini, G., Fornasieri, M, Nicoletti, M. (1968) Onoratoite, a new antimony oxichloride from Cetine di Cotorniano, Rosia, (Siena). Mineralogical Magazine: 36: 1037-1044.
Fleischer, M. (1969) New mineral names. American Mineralogist: 54: 1218-1223.
Sgarlata, F. (1970) Struttura cristallina dell'onoratoite, un ossicloruro naturale di antimonio. Periodico di mineralogia – Roma: 315-328.
Menchetti, S., Sabelli, C., Trosti-Ferroni, R. (1984) The structures of onoratoite, Sb8O11Cl2 and Sb8O11Cl2·6H2O. Acta Crystallographica: C40: 1506-1510.
Dunn, P.J., Gobel, V., Grice, J.D., Puziewicz, J., Shigley, J.E., Vanko, D.A., Zilczer, J. (1985) New mineral names. American Mineralogist: 70: 436-441.
Mayerová, Z., Johnsson, M., Lidin, S. (2006) The structure of onoratoite, Sb8O11X2 (X=Cl,◻Br) revisited. Solid State Sciences: 8: 849-854.
Roper, A.J., Leverett, P., Murphy, T.D., Williams, P.A. (2014) The stability of onoratoite, Sb8O11Cl2, in the supergene environment. Mineralogical Magazine: 78: 1671-1675.

Internet Links for OnoratoiteHide

Localities for OnoratoiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Oruro
    • Cercado Province
      • Oruro City
Pastor, M., Pastor, A., Torró, L., Martínez, Á., Artiaga, D., Torres, B., ... & Alfonso, P. (2015) The San José-Itos Mines, Oruro, Bolivia: Structure and Ag-Sn Mineralization. in Mineral Resources in a Sustainable World • 13th SGA Biennial Meeting 2015. Proceedings, Volume 1 pp 327-330
  • Tuscany
    • Grosseto Province
      • Civitella Paganico
Brizzi G., Sabelli C. (1985): Minerali di Poggio Peloso (GR). Riv. Mineral. Ital., 8, 4, (4-1985), 135-143; Montrasio A., Sciesa E, Vignola P. (1997): Collezionare minerali. Hobby & Work, Milano, 800 pp.
    • Siena Province
      • Chiusdino
Belluomini G., Fornasieri M, Nicoletti M., 1968. Onoratoite, a new antimony oxichloride from Cetine di Cotorniano, Rosia, (Siena). Mineralogical Magazine, 36: 1037-1044. ; Menchetti, S., Batoni, M., Batacchi, C., Borselli, G., Brogi, A., Ceccantini, L., Fassina, B., Marchesini, M., Rossellini, A. & Ruggieri, G. (2015): Le Cetine di Cotorniano. Miniera e minerali. Associazione Micro-Mineralogica Italiana, Cremona, 354 p.
South Africa
  • Mpumalanga
    • Nkangala District
Meulenbeld, P.M.P.B., Grote, W. & Verryn, S. (2014) The Albert silver mine and trippkeite occurrence. Rock & Minerals 89(5), 417-422.
Mineral and/or Locality  
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