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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}.

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:
Stibnite2 photos of Onoratoite associated with Stibnite on mindat.org.
Sulphur1 photo of Onoratoite associated with Sulphur on mindat.org.
Quartz1 photo of Onoratoite associated with Quartz on mindat.org.
Gypsum1 photo of Onoratoite associated with Gypsum on mindat.org.

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.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

8.9.5BismocliteBiOClTet. 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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