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Smithite

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About SmithiteHide

Formula:
AgAsS2
Colour:
Pale red; red-orange or brownish orange on exposure to light
Lustre:
Adamantine
Hardness:
1½ - 2
Specific Gravity:
4.88
Crystal System:
Monoclinic
Name:
Named in honor of George Frederick Herbert Smith (26 May 1872, Edgbaston, England, UK - 20 April 1953), crystallographer and curator, British Museum of Natural History, London (England). The mineral herbertsmithite is also named after him.
Dimorph of:
This page provides mineralogical data about Smithite.


Classification of SmithiteHide

Approved, 'Grandfathered' (first described prior to 1959)
First Published:
1905
2.GC.30

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
C : Poly-sulfarsenites
3.7.3.1

3 : SULFOSALTS
7 : ø = 2
5.2.1

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
2 : Sulpharsenites etc. of Ag

Physical Properties of SmithiteHide

Adamantine
Transparency:
Opaque
Colour:
Pale red; red-orange or brownish orange on exposure to light
Streak:
Vermillion
Hardness:
1½ - 2 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{100} perfect
Fracture:
Conchoidal
Density:
4.88 g/cm3 (Measured)    

Optical Data of SmithiteHide

Type:
Biaxial (-)
Dispersion:
marked to extreme

Chemical Properties of SmithiteHide

Formula:
AgAsS2
Common Impurities:
Sb

Crystallography of SmithiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 17.23 Å, b = 7.78 Å, c = 15.19 Å
β = 101.2°
Ratio:
a:b:c = 2.215 : 1 : 1.952
Unit Cell V:
1,997.43 ų (Calculated from Unit Cell)
Morphology:
Equant; tabular {100}. Tabular crystals appear hexagonal due to strong zonal developments nearly 60° apart.

Crystallographic forms of SmithiteHide

Crystal Atlas:
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Smithite - {100}, {101}, {001}, modified
3d models and HTML5 code kindly provided by www.smorf.nl.

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014690SmithiteHellner E, Burzlaff H (1964) Die struktur des smithits AgAsS2 Naturwissenschaften 51 35-361964Lengenbach quarry, Binnatal, Switzerland0293
CIF Raw Data - click here to close

Type Occurrence of SmithiteHide

Reference:
Solly, R.H. (1905) Some new minerals from the Binnenthal, Switzerland. Mineralogical Magazine: 14: 72-82.

Synonyms of SmithiteHide

Other Language Names for SmithiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
9 photos of Smithite associated with QuadratiteAg(Cd,Pb)AsS3
6 photos of Smithite associated with Wakabayashilite[(As,Sb)6S9][As4S5]
3 photos of Smithite associated with ArgyroditeAg8GeS6
3 photos of Smithite associated with Freibergite Subgroup([Ag6]4+,(Ag,Cu)6)((Cu,Ag)4$c2+2)Sb4S12S0-1
2 photos of Smithite associated with RathiteAg2Pb12-xTlx/2As18+x/2S40
2 photos of Smithite associated with PierrotiteTl2(Sb,As)10S16
1 photo of Smithite associated with HutchinsoniteTlPbAs5S9
1 photo of Smithite associated with ImhofiteTl5.8As15.4S26
1 photo of Smithite associated with RouthieriteTl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6
1 photo of Smithite associated with Lengenbachite Ag4Cu2Pb18As12S39

Related Minerals - Nickel-Strunz GroupingHide

2.GC.05HatchiteAgTlPbAs2S5Tric. 1 : P1
2.GC.05Wallisite(Cu,Ag)TlPbAs2S5Tric.
2.GC.10SinneriteCu6As4S9Tric. 1 : P1
2.GC.15WatanabeiteCu4(As,Sb)2S5Orth.
2.GC.20SimoniteTlHgAs3S6Mon. 2/m
2.GC.25QuadratiteAg(Cd,Pb)AsS3Tet.
2.GC.25ManganoquadratiteAgMnAsS3Tet. 4 2 2 : P43 2 2
2.GC.35TrechmanniteAgAsS2Trig.
2.GC.40aAleksitePbBi2Te2S2Trig.
2.GC.40bKochkaritePbBi4Te7Trig.
2.GC.40cPoubaitePbBi2(Se,Te,S)4Trig.
2.GC.40cRucklidgeitePbBi2Te4Trig.
2.GC.40eBabkinitePb2Bi2(S,Se)3Trig.
2.GC.40dSaddlebackitePb2Bi2Te2S3Hex.
2.GC.45TvalchrelidzeiteHg3SbAsS3Mon. 2/m
2.GC.50MutnovskitePb4As2S6IClOrth. mmm (2/m 2/m 2/m) : Pnma

Related Minerals - Dana Grouping (8th Ed.)Hide

3.7.3.2MiargyriteAgSbS2Mon. 2/m : B2/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

5.2.2TrechmanniteAgAsS2Trig.
5.2.3ProustiteAg3AsS3Trig. 3m (3 2/m) : R3c
5.2.4XanthoconiteAg3AsS3Mon. 2/m : B2/b
5.2.5Pearceite[Ag9CuS4][(Ag,Cu)6(As,Sb)2S7]Trig. 3m (3 2/m) : P3m1
5.2.6Pearceite-T2acTrig. 3 2 : P3 2 1
5.2.7Argentotennantite-(Zn)Ag6(Cu4Zn2)As4S12SIso. 4 3m : I4 3m
5.2.8MiargyriteAgSbS2Mon. 2/m : B2/b
5.2.9PyrargyriteAg3SbS3Trig. 3m : R3c
5.2.10PyrostilpniteAg3SbS3Mon. 2/m : P21/b
5.2.11StephaniteAg5SbS4Orth. mm2 : Cmc21
5.2.12Polybasite[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]Mon. 2/m : B2/m
5.2.13BillingsleyiteAg7AsS6Iso. 2 3 : P21 3
5.2.14Polybasite-TacTrig. 3m (3 2/m) : P3m1
5.2.15Freibergite Subgroup([Ag6]4+,(Ag,Cu)6)((Cu,Ag)4$c2+2)Sb4S12S0-1Iso. 4 3m : I4 3m
5.2.16AramayoiteAg3Sb2(Bi,Sb)S6Tric. 1 : P1
5.2.17MatilditeAgBiS2Trig. 3m (3 2/m) : P3m1
5.2.18SchapbachiteAg0.4Pb0.2Bi0.4SIso.
5.2.19PavoniteAgBi3S5Mon. 2/m : B2/m
5.2.20ArcubisiteAg6CuBiS4
5.2.21BohdanowicziteAgBiSe2Trig. 3m (3 2/m) : P3m1
5.2.22SelenostephaniteAg5SbSe4Orth.
5.2.23Benleonardite[Ag6(Sb,As)2S6Te][Ag9Cu(S,Te)2Te2]Trig. 3m (3 2/m) : P3m1
5.2.24VolynskiteAgBiTe2Orth.

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 SmithiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Solly, R.H. (1905) Some new minerals from the Binnenthal, Switzerland. Mineralogical Magazine: 14: 72-82.
Palache, Charles, Harry Berman & Clifford Frondel (1944) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 430-432.
Geological Society of America Memoir 85 (1962): 142.
Hellner, E., Burzlaff, H. (1964) Die Struktur des Smithits, AgAsS2. Naturwissenschaften: 51: 35-36.
Roth, P. (2007) Smithite. in Minerals first discovered in Switzerland and minerals named after Swiss individuals, Kristallografik Verlag (Achberg Germany): 138-139.

Internet Links for SmithiteHide

Localities for SmithiteHide

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.
Chile
 
  • Atacama
    • Copiapó Province
      • Tierra Amarilla
        • Pampa Larga mining district
          • Alacrán
maurizio dini
France
 
  • Provence-Alpes-Côte d'Azur
    • Hautes-Alpes
      • La Chapelle-en-Valgaudemar (La Chapelle-en-Valgaudémar)
American Mineralogist, Volume 68, pages 235-244, 1983; Johan, Z. & Mantienne, J. (2000): Thallium-rich mineralization at Jas Roux, Hautes-Alpes, France: a complex epithermal, sediment-hosted, ore-forming system. J. Czech Geol. Soc. 45, 63-77.
Germany
 
  • Baden-Württemberg
    • Karlsruhe Region
      • Rhein-Neckar-Kreis
        • Wiesloch
Weiss, S. (1990) Mineralfundstellen Atlas, Deutschland West. Weise Verlag, München, 320 pages.
  • Hesse
    • Darmstadt
      • Darmstadt-Dieburg
        • Mühltal
          • Nieder-Beerbach
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
Iran
 
  • West Azerbaijan Province
    • Sardasht County
      • Sardasht
Topa, D., Makovicky, E., Tajedin, H., Putz, H., Zagler, G. (2013): Barikaite, Pb10Ag3(Sb8As11)S19S40, a new member of the sartorite homologous series. Mineralogical Magazine, 77, 3039-3046.
Ireland
 
  • Munster
    • Tipperary County
      • Silvermines District
Gasparrini, C. (1978) unpubl. report, Minmet Scientific, Toronto, Canada; Taylor, S. and Andrew, C.J. (1979) Trans. Inst. Mining Metall., sect. B, 88, 125.; Economic Geology (1984) 79, 529-548.; Andrew, C.J. (1987) pers. comm.; Ryback, G., Nawaz, R. and Farley, E. (1988) Seventh Supplementary List of British Isles Minerals (Irish). Mineralogical Magazine, vol. 52, n° 365, pp. 267-274.;
Japan
 
  • Tochigi Prefecture
    • Nikko City
      • Kuriyamamura
Shimizu, M., Matsubara, S., Shimizu, M., Kyouno, Y., Harada, A., & Cook, N. J. (2007). High-grade Ag–Cu–Sn–In mineralization in the Nishizawa-Ashio area, Tochigi Prefecture, central Japan. Geochim. Cosmochim. Acta, 71(suppl 1).
Peru
 
  • Lima
    • Oyon Province
EDS analysis Frank Keutsch
Poland
 
  • Podlaskie Voivodeship
    • Suwałki County
      • Suwałki Massif
Kucha H. 1982: Haycockite and mooihoekite from titanomagnetite ore, Krzemianka, Poland. Mineralogia Polonica, vol. 13, no 2, 27-32.
Spain
 
  • Andalusia
    • Almería
      • Cuevas del Almanzora (Cuevas de Vera)
        • Sierra Almagrera
          • Las Herrerías
Navarro, A., & Cardellach, E. (2009). Mobilization of Ag, heavy metals and Eu from the waste deposit of the Las Herrerias mine (Almería, SE Spain). Environmental geology, 56(7), 1389-1404.
Switzerland (TL)
 
  • Valais
    • Goms
      • Binn
        • Fäld
Solly, R.H. (1905) Some new minerals from the Binnenthal, Switzerland. Mineralogical Magazine: 14: 72-82.
Cannon, R., Hensel, H. & Raber, T. (2008): Der Reckibach-Dolomit im Binntal, Schweiz: Mineralbestand und Neufunde. Lapis, 33 (3), 20-28; 50. (in German); Uwe Kolitsch (unpublished crystal-structure refinement)
 
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