Sterryite
A valid IMA mineral species
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About Sterryite
Thomas Sterry Hunt
Formula:
Cu(Ag,Cu)3Pb19(Sb,As)22(As2)S56
Colour:
Black
Lustre:
Metallic, Sub-Metallic
Hardness:
3½
Specific Gravity:
5.91 (Calculated)
Crystal System:
Monoclinic
Member of:
Name:
Named in honour of Thomas Sterry Hunt (5 September 1826, Norwich, Connecticut, USA - 12 February 1892, New York City, New York, USA), chemist and a pioneer of Canadian mineralogy. Hunt was the first chemist and later mineralogist on the staff of the Geological Survey of Canada, and the co-author of Geology of Canada (1863).
Black, metallic rod-like crystals, also massive.
Closely related to parasterryite.
The Ag analogue of ciriottiite.
Closely related to parasterryite.
The Ag analogue of ciriottiite.
Unique Identifiers
Mindat ID:
3768
Long-form identifier:
mindat:1:1:3768:2
IMA Classification of Sterryite
Approved
IMA Formula:
Cu1+(Ag1+,Cu1+)3Pb2+19(Sb3+,As3+)22(As2)4+S2-56
Approval year:
1966
First published:
1967
Classification of Sterryite
2.LB.30
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
L : Unclassified Sulfosalts
B : With essential Pb
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
L : Unclassified Sulfosalts
B : With essential Pb
3.5.3.1
3 : SULFOSALTS
5 : 2.5 < ø < 3
3 : SULFOSALTS
5 : 2.5 < ø < 3
5.7.31
5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
7 : Sulpharsenites etc. of Pb and other metals
5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
7 : Sulpharsenites etc. of Pb and other metals
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 |
|---|---|---|
| Srr | 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 Sterryite
Metallic, Sub-Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Black
Hardness:
3½ on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
Perfect
Parallel to c
Parallel to c
Fracture:
Irregular/Uneven
Density:
5.91 g/cm3 (Calculated)
Chemistry of Sterryite
Mindat Formula:
Cu(Ag,Cu)3Pb19(Sb,As)22(As2)S56
Element Weights:
Common Impurities:
Ag,Cu
Crystallography of Sterryite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 8.1891(10) Å, b = 28.5294(13) Å, c = 42.98(2) Å
β = 94.896(8)°
β = 94.896(8)°
Ratio:
a:b:c = 0.287 : 1 : 1.507
Unit Cell V:
10,004.78 ų (Calculated from Unit Cell)
Morphology:
Rod-like to acicular crystals.
Twinning:
Commonly twinned on (001).
Comment:
Space group P21/n. Originally assumed to be orthorhombic, Pbam, with 28.48, 42.62, 4.09 A.
Crystal Structure
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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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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) |
|---|---|---|---|---|---|---|---|
| 0019482 | Sterryite | Moelo Y, Guillot-Deudon C, Evain M, Orlandi P, Biagioni C (2012) Comparative modular analysis of two complex sulfosalt structures: sterryite, Cu(Ag,Cu)3Pb19-(Sb,As)22(As-As)S56, and parasterryite, Ag4Pb20(Sb,As)24S58 Acta Crystallographica B68 480-492 |  | 2012 | Pollone mine, Tuscany, Italy | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.14 Å | (50) |
| 3.68 Å | (90) |
| 3.54 Å | (60) |
| 3.26 Å | (100) |
| 2.97 Å | (60) |
| 2.84 Å | (70) |
| 2.35 Å | (60) |
| 2.05 Å | (60) |
Comments:
20-562
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| High-? alteration and/or metamorphism | |
| 33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Sterryite
General Appearance of Type Material:
Needlelike laths which cut veenite, as single anhedral grains. Loose fragments are plumose and characteristically occur as bundles of fibres.
Place of Conservation of Type Material:
Canadian Geological Survey, Ottawa, Ontario, Canada, 12169
Royal Ontario Museum, Toronto, Ontario, Canada.
National Museum of Natural History, Washington, D.C., USA, 160258.
Royal Ontario Museum, Toronto, Ontario, Canada.
National Museum of Natural History, Washington, D.C., USA, 160258.
Associated Minerals at Type Locality:
Synonyms of Sterryite
Other Language Names for Sterryite
Relationship of Sterryite to other Species
Member of:
Other Members of Sterryite Group:
| Ciriottiite | Cu(Cu,Ag)3Pb19(Sb,As)22(As2)S56 | Mon. 2/m |
| Hayyanite | Cu5Ag11Pb76Sb71As17(As2+)8S224 | Mon. 2/m : P21/b |
| Parasterryite | Ag4Pb20Sb14As10S58 | Mon. 2/m : P21/b |
Common Associates
Associations Based on Photo Data:
| 12 photos of Sterryite associated with Quartz | SiO2 |
| 3 photos of Sterryite associated with Galena | PbS |
| 2 photos of Sterryite associated with 'Smoky Quartz' | SiO2 |
| 2 photos of Sterryite associated with Geocronite | Pb14Sb6S23 |
| 1 photo of Sterryite associated with Veenite | Pb16Sb9-xAs7+xS40, x ~ 0-0.5 |
| 1 photo of Sterryite associated with Calcite | CaCO3 |
| 1 photo of Sterryite associated with Baryte | BaSO4 |
| 1 photo of Sterryite associated with Sphalerite | ZnS |
Related Minerals - Strunz-mindat Grouping
| 2.LB. | Ciriottiite | Cu(Cu,Ag)3Pb19(Sb,As)22(As2)S56 |
| 2.LB. | Hayyanite | Cu5Ag11Pb76Sb71As17(As2+)8S224 |
| 2.LB. | Wenqingite | Pb5(AsS3)2(Ge2S6) |
| 2.LB.05 | Miharaite | Cu4FePbBiS6 |
| 2.LB.30 | Launayite | Cu2Pb20(Sb,As)26S60 |
| 2.LB.30 | Ardaite | Pb19Sb13S35Cl7 |
| 2.LB.30 | Sorbyite | CuPb9(Sb,As)11S26 |
| 2.LB.30 | Playfairite | Pb16(Sb,As)19S44Cl |
| 2.LB.30 | Madocite | Pb19(Sb,As)16S43 |
| 2.LB.35 | Larosite | (Cu,Ag)21PbBiS13 |
| 2.LB.40 | Mazzettiite | Ag3HgPbSbTe5 |
| 2.LB.40 | Petrovicite | Cu3HgPbBiSe5 |
| 2.LB.45 | Crerarite | Pt2-x(Bi,Pb)11(S,Se)11 |
| 2.LB.50 | Quijarroite | Cu6HgPb2Bi4Se12 |
| 2.LB.55 | Znamenskyite | Pb4In2Bi4S13 |
Other Information
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 Sterryite
mindat.org URL:
https://www.mindat.org/min-3768.html
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References for Sterryite
Reference List:
Jambor, John Leslie (1967) New lead sulfantimonides from Madoc, Ontario. Part 1. The Canadian Mineralogist, 9 (1) 7-24
Jambor, John Leslie (1967) New lead sulfantimonides from Madoc, Ontario. Part 2 - mineral descriptions. The Canadian Mineralogist, 9 (2) 191-213
Jambor, John Leslie (1968) New lead sulfantimonides from Madoc, Ontario. Part 3--Syntheses, paragenesis, origin. The Canadian Mineralogist, 9 (4). 505-521
Moëlo, Y., Orlandi, P., Guillot-Deudon, C., Biagioni, C., Paar, W., Evain, M. (2011) LEAD-ANTIMONY SULFOSALTS FROM TUSCANY (ITALY). XI. THE NEW MINERAL SPECIES PARASTERRYITE, Ag4Pb20(Sb14.5As9.5) 24S58, AND ASSOCIATED STERRYITE, Cu(Ag,Cu)3Pb19(Sb,As)22(As-As)S56, FROM THE POLLONE MINE, TUSCANY, ITALY. The Canadian Mineralogist, 49 (2). 623-638 doi:10.3749/canmin.49.2.623
Moëlo, Yves, Guillot-Deudon, Catherine, Evain, Michel, Orlandi, Paolo, Biagioni, Cristian (2012) Comparative modular analysis of two complex sulfosalt structures: sterryite, Cu(Ag,Cu)3Pb19(Sb,As)22(As–As)S56, and parasterryite, Ag4Pb20(Sb,As)24S58. Acta Crystallographica Section B Structural Science, 68 (5) 480-492 doi:10.1107/s0108768112034027
Localities for Sterryite
Showing 6 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.
Canada | |
| Duff (2016) |
| Jambor (1967) +3 other references |
India | |
| Acharya et al. (1982) |
Indian Plate | |
| Singh et al. (1991) | |
Iran | |
| Makovicky et al. (2013) |
Italy | |
| Moëlo et al. (2011) +2 other references |
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Pollone Mine, Valdicastello Carducci, Pietrasanta, Lucca Province, Tuscany, Italy