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Sorbyite

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Henry Clifton Sorby
Formula:
CuPb9(Sb,As)11S26
System:
Monoclinic
Colour:
Lead gray
Hardness:
3½ - 4
Name:
Named after Henry Clifton Sorby (1826-1908), chemist and geologist, independent research scientist of Sheffield (England) ; a pioneer in the application of physics to explain geological phenomena.
Madocite Group.

Formula redefined by Moëlo et al. (2008) as CuPb9(Sb,As)11S26, but the structure has not been determined.

Classification of Sorbyite

Approved 1966
2.LB.30

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
L : Unclassified Sulfosalts
B : With essential Pb
3.6.12.1

3 : SULFOSALTS
6 : 2 < ø < 2.49
5.6.21

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
6 : Sulpharsenites etc. of Pb alone
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First Recorded Occurrence of Sorbyite

Year of Discovery:
1966

Occurrences of Sorbyite

Geological Setting:
Hydrothermal

Physical Properties of Sorbyite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Lead gray
Streak:
Black
Hardness (Mohs):
3½ - 4
Hardness (Vickers):
VHN50=175 kg/mm2
Cleavage:
Perfect
on {001}
Density:
5.52 g/cm3 (Calculated)

Crystallography of Sorbyite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Space Group Setting:
C2/m
Cell Parameters:
a = 45.15Å, b = 4.14Å, c = 26.53Å
β = 113.42°
Ratio:
a:b:c = 10.906 : 1 : 6.408
Unit Cell Volume:
V 4,550.47 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Equant to thin tabular
Twinning:
Irregular lamellae in polished sections

Optical Data of Sorbyite

Type:
Anisotropic
Anisotropism:
Strong
Colour in reflected light:
White
Pleochroism:
Strong

Chemical Properties of Sorbyite

Formula:
CuPb9(Sb,As)11S26
Idealised Formula:
Pb19(Sb,As)20S49
Essential elements:
All elements listed in formula:

Relationship of Sorbyite to other Species

2.LB.05MiharaiteCu4FePbBiS6
2.LB.30ArdaitePb19Sb13S35Cl7
2.LB.30LaunayiteCuPb10(Sb,As)12S20
2.LB.30MadocitePb19(Sb,As)16S43
2.LB.30PlayfairitePb16(Sb,As)19S44Cl
2.LB.30SterryiteAg2Pb10(Sb,As)12S29
2.LB.35Larosite(Cu,Ag)21(Pb,Bi)2S13
2.LB.40PetroviciteCu3HgPbBiSe5
2.LB.40MazzettiiteAg3HgPbSbTe5
2.LB.45CreraritePt2-x(Bi,Pb)11(S,Se)11
5.6.1SartoritePbAs2S4
5.6.2DufrénoysitePb2As2S5
5.6.3LiveingitePb9As13S28
5.6.4BaumhaueritePb12As16S36
5.6.5GratonitePb9As4S15
5.6.6JordanitePb14(As,Sb)6S23
5.6.7FülöppitePb3Sb8S15
5.6.8ZinkenitePb9Sb22S42
5.6.9PlagionitePb5Sb8S17
5.6.10HeteromorphitePb7Sb8S19
5.6.11LaunayiteCuPb10(Sb,As)12S20
5.6.12PlayfairitePb16(Sb,As)19S44Cl
5.6.13SemseyitePb9Sb8S21
5.6.14MadocitePb19(Sb,As)16S43
5.6.15BoulangeritePb5Sb4S11
5.6.17RobinsonitePb4Sb6S13
5.6.18GuettarditePbAsSbS4
5.6.19Twinnite Pb0.8Tl0.1Sb1.3As0.8S4
5.6.20VeenitePb2(Sb,As)2S5
5.6.22GeocronitePb14(Sb,As)6S23
5.6.23GalenobismutitePbBi2S4
5.6.24CosalitePb2Bi2S5
5.6.25CannizzaritePb4Bi6S13
5.6.26LillianitePb3-2xAgxBi2+xS6
5.6.27GiessenitePb27Cu2(Bi,Sb)19S57
5.6.28Platynite
5.6.29XilingolitePb3Bi2S6
5.6.30WeibullitePb5Bi8Se7S11
5.6.31WittitePb9Bi12(S,Se)27
5.6.32KirkiitePb10Bi3As3S19
5.6.33UstarasitePb(Bi,Sb)6S10 (?)

Other Names for Sorbyite

Name in Other Languages:
German:Sorbyit
Spanish:Sorbyita

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.

References for Sorbyite

Reference List:
JAMBOR, J.L. (1967): New lead sulfantimonides from Madoc, Ontario. 1. Canadian Mineralogist 9, 7-24.

JAMBOR, J.L. (1967): New lead sulfantimonides from Madoc, Ontario. 2. Mineral descriptions. Canadian Mineralogist 9, 191-213.

JAMBOR, J.L. (1968): New lead sulfantimonides from Madoc, Ontario. 3. Syntheses, paragenesis, origin. Canadian Mineralogist 10, 507-521.

JAMBOR, J.L., LAFLAMME, J.H.G. & WALKER, D.A. (1982): A re-examination of the Madoc sulfosalts. Mineralogical Record 13, 93-100.

Moëlo, Y., Makovicky, E., Mozgova, N.N., Jambor, J.L., Cook, N., Pring, A., Paar, W., Nickel, E.H., Graeser, S., Karup-Møller, S.; Balić-Žunić, T.; Mumme, W.G., Vurro, F., Topa, D., Bindi, L., Bente, K., Shimizu, M. (2008): the IMA CNMNC Sulfosalt Subcommittee. Revision of sulfosalt definition and nomenclature. A review of sulfosalts systematics. European Journal of Mineralogy, 20, 7-46.

Internet Links for Sorbyite

Localities for Sorbyite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Canada
 
  • Ontario
    • Hastings Co.
      • Madoc area
        • Huntingdon Township
JAMBOR, J.L. (1967): New lead sulfantimonides from Madoc, Ontario. 1. Canadian Mineralogist 9, 7-24. JAMBOR, J.L. (1967): New lead sulfantimonides from Madoc, Ontario. 2. Mineral descriptions. Canadian Mineralogist 9, 191-213. JAMBOR, J.L. (1968): New lead sulfantimonides from Madoc, Ontario. 3. Syntheses, paragenesis, origin. Canadian Mineralogist 10, 507-521. JAMBOR, J.L., LAFLAMME, J.H.G. & WALKER, D.A. (1982): A re-examination of the Madoc sulfosalts. Mineralogical Record 13, 93-100.
Indonesia
 
  • Sulawesi Island (Celebes Island)
    • Sulawesi Selatan Province (South Sulawesi Province)
      • Gowa
Nur, I., Idrus, A., Pramumijoyo, S., Harijoko, A., Watanabe, K., Imai, A., ... & Irfan, U. R. (2012). Elemental Mass Balance of the Hydrothermal Alteration Associated with the Baturappe Epithermal Silver-Base Metal Prospect, South Sulawesi, Indonesia.
Kyrgyzstan
 
  • Osh Oblast
    • Alai Range (Alay Range)
      • Fergana Valley
[Lapis 11:11-24]
USA
 
  • Nevada
CanMin 9:191
      • Candelaria District
NBMG Spec. Pub. 31 Minerals of Nevada
NBMG Spec. Pub. 31 Minerals of Nevada
Mineral and/or Locality  
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