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About SilléniteHide

Lars G. Sillén
Olive-green, yellowish-green, gray- or brown-green
Specific Gravity:
Crystal System:
Named after Lars Gunnar Sillén (July 11, 1916 - July 23, 1960), of Stockholm, Sweden, who worked extensively on bismuth-oxygen compounds.
Type Locality:
This page provides mineralogical data about Sillénite.

Classification of SilléniteHide

Approved, 'Grandfathered' (first described prior to 1959)

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations

3 : A2X3

7 : Oxides and Hydroxides
13 : Oxides of As, Sb and Bi

Physical Properties of SilléniteHide

Olive-green, yellowish-green, gray- or brown-green
Yellowish to brownish white
VHN50=345 - 386 kg/mm2 - Vickers
9.16 g/cm3 (Measured)    8.8 g/cm3 (Calculated)
Caculated also 9.18

Optical Data of SilléniteHide

RI greater than 2.5

Chemical Properties of SilléniteHide

CAS Registry number:

CAS Registry numbers are published by the American Chemical Society

Crystallography of SilléniteHide

Crystal System:
Class (H-M):
2 3 - Tetartoidal
Space Group:
I2 3
Cell Parameters:
a = 10.110(2) Å
Unit Cell V:
1,033.36 ų (Calculated from Unit Cell)
Fine-grained masses.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
3.216 (10)
1.743 (9)
2.730 (8)
2.939 (7)
1.651 (6)
1.499 (6)
1.216 (5)

Type Occurrence of SilléniteHide

Place of Conservation of Type Material:
Harvard University, Cambridge, Massachusetts, 83256; National Museum of Natural History, Washington, D.C., USA, C1926.
Geological Setting of Type Material:
oxidation of bismuth-bearing minerals
Associated Minerals at Type Locality:

Other Language Names for SilléniteHide

Simplified Chinese:软铋矿
Traditional Chinese:軟鉍礦

Common AssociatesHide

Associated Minerals Based on Photo Data:
Shattuckite4 photos of Sillénite associated with Shattuckite on mindat.org.
Mottramite3 photos of Sillénite associated with Mottramite on mindat.org.
Duhamelite3 photos of Sillénite associated with Duhamelite on mindat.org.
Ajoite3 photos of Sillénite associated with Ajoite on mindat.org.
Namibite3 photos of Sillénite associated with Namibite on mindat.org.
Quartz3 photos of Sillénite associated with Quartz on mindat.org.
Bismuth1 photo of Sillénite associated with Bismuth on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.CB.05BrizziiteNaSb5+O3Trig. 3 : R3
4.CB.05CorundumAl2O3Trig. 3m (3 2/m) : R3c
4.CB.05Ecandrewsite(Zn,Fe2+,Mn2+)TiO3Trig. 3 : R3
4.CB.05GeikieliteMgTiO3Trig. 3 : R3
4.CB.05HematiteFe2O3Trig. 3m (3 2/m) : R3c
4.CB.05IlmeniteFe2+TiO3Trig. 3 : R3
4.CB.05PyrophaniteMn2+TiO3Trig. 3 : R3
4.CB.05Unnamed (Auroantimonate)AuSbO3
4.CB.05TistariteTi3+2O3Trig. 3m (3 2/m) : R3c
4.CB.10AvicenniteTl2O3Iso. m3 (2/m 3) : Ia3
4.CB.10BixbyiteMn3+2O3Iso. m3 (2/m 3) : Ia3
4.CB.15Armalcolite(Mg,Fe2+)Ti2O5Orth. mmm (2/m 2/m 2/m)
4.CB.15PseudobrookiteFe2TiO5Orth. mmm (2/m 2/m 2/m)
4.CB.20Zincohögbomite-2N2S[(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2Hex. 6mm : P63mc
4.CB.20Zincohögbomite-2N6S[(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2Hex. 6mm : P63mc
4.CB.20Magnesiohögbomite-6N6S[(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6Trig. 3m (3 2/m) : R3m
4.CB.20Magnesiohögbomite-2N3S[(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2Trig. 3m (3 2/m) : P3 1m
4.CB.20Magnesiohögbomite-2N2S[(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2Hex. 6mm : P63mc
4.CB.20Ferrohögbomite-6N12S[(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6Trig. 3m (3 2/m) : R3m
4.CB.25KleberiteFeTi6O11(OH)5Mon. 2/m : P21/b
4.CB.30OxyvaniteV3+2V4+O5Mon. 2/m : B2/b
4.CB.40RinmaniteZn2Sb2Mg2Fe4O14(OH)2Hex. 6 : P63
4.CB.40IseiteMn2Mo3O8Hex. 6mm : P63mc
4.CB.40MajindeiteMg2Mo3O8Hex. 6mm : P63mc
4.CB.45ClaudetiteAs2O3Mon. 2/m
4.CB.45StibioclaudetiteAsSbO3Mon. 2/m : P21/m
4.CB.50ArsenoliteAs2O3Iso. m3m (4/m 3 2/m) : Fd3m
4.CB.50SenarmontiteSb2O3Iso. m3m (4/m 3 2/m) : Fd3m
4.CB.55ValentiniteSb2O3Orth. mmm (2/m 2/m 2/m) : Pccn
4.CB.60BismiteBi2O3Mon. 2/m : P21/b
4.CB.75KyzylkumiteV3+Ti2O5(OH)Mon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.13.1ArsenoliteAs2O3Iso. m3m (4/m 3 2/m) : Fd3m
7.13.2ClaudetiteAs2O3Mon. 2/m
7.13.3SenarmontiteSb2O3Iso. m3m (4/m 3 2/m) : Fd3m
7.13.4ValentiniteSb2O3Orth. mmm (2/m 2/m 2/m) : Pccn
7.13.7BahianiteAl5Sb3O14(OH)2Mon. 2/m : B2/m
7.13.8Cualstibite-1M(Cu,Al)3(OH)6[Sb5+(OH)6]Mon. 2/m : P21/b
7.13.9BismutostibiconiteBi(Sb5+,Fe3+)2O7Iso. m3m (4/m 3 2/m) : Fd3m
7.13.12BismiteBi2O3Mon. 2/m : P21/b

Other InformationHide

Soluble in HCl
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 SilléniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Frondel, C. (1943) Mineralogy of the oxides and carbonates of Bismuth. American Mineralogist: 28: 521-535.
Palache, C., Berman, H., Frondel, C. (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: 601.
Bulletin de la Société française de Minéralogie et de Cristallographie (1982): 105: 31.
Radaev, S.F., Muradyan, L.A., Simonov, V.I. (1991) Atomic structure and crystal chemistry of sillenites: Bi12(Bi3+0.50Fe3+0.50)O19.50 and Bi12(Bi3+0.50Fe3+0.50)O19.33. Acta Crystallographica: B47: 1-6.
Kusachi, I., Henmi, C. (1991) Sillenite from Fuka, Okayama prefecture, Japan. Mineralogical Journal: 15(8): 343-348.
Pen'kov, I.N. (2001) Investigation of sillenite (γ-Bi2O3) by the NQR method (the new data). Zapiski Vserossijskogo Mineralogicheskogo Obshchestva: 130(1): 111-114.

Internet Links for SilléniteHide

Localities for SilléniteHide

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.
  • New South Wales
    • Gough Co.
      • Elsmore
Rankin, J., Lawrence, L. J., Sharpe, J. L. and Williams, P. A. (2002): Rare secondary bismuth, tungsten and molybdenum minerals from Elsmore, New England district of New South Wales. Australian Journal of Mineralogy 8, 55-60.
  • La Paz
    • Murillo Province
      • Incachaca reservoir
Hatløy, S. (2013). From cold to hot: post-Hirnantian sedimentary basins in Bolivia-A source rock for hydrocarbon deposits in the Andes?–A case study of the Uncía and Catavi formations. MS Thesis University of Stavanger.
  • Qinghai
    • Haixi
      • Golmud Co. (Ge'ermu Co.)
        • Qimantage Mts
Chunyan Dong, Xiaoguo Chi, Fengyue Sun, and Yuan Zhang (2005): Multipurpose Utilization of Mineral Resources 1(1), 29-33
  • Sichuan
    • Garzê Autonomous Prefecture (Ganzi Autonomous Prefecture)
      • Baiyu Co.
Xiaoming Qu, Zengqian Hou, and Shugui Zhou (2001): Acta Geoscientia Sinica 23(1), 29-34
Czech Republic
  • Karlovy Vary Region
    • Mariánské Lázně (Marienbad)
      • Slavkovský Les Mtn
Sejkora, J., Ridkosil, T., Gabasova, A. (1993): Sillénite from Smrkovec near Marianské Lazné. J.Czech Geol.Soc., 38, 244-245
  • Liberec Region
    • Jablonec nad Nisou
Viktor Goliáš, Gereltsetseg Tumurkhuu, Pavel Kohn, Ondřej Šálek, Jakub Plášil, Radek Škoda, Jan Soumar (2016): Construction of new houses on a uranium vein outcrop: a case study from the Czech Republic. Nukleonika 61(3), 343-349.
  • Ústí Region
    • Krušné Hory Mts (Erzgebirge)
      • Krupka (Graupen)
        • Knöttel area (Knötel; Knödel; Knödlberg)
Lapis 23(4), 18-34 (1998)
  • Saxony
    • Erzgebirge District
      • Johanngeorgenstadt District
Gröbner, J., Grimm, O. & Zienau, H. (2005): Neufunde interessanter Wismut- und Uranmineralien am Schaarschacht, Johanngeorgenstadt, Sachsen. Lapis 30 (6), 44-51; 62.
      • Schmiedeberg
Witzke, T. (2011): Neues von Sadisdorf, Erzgebirge: Gananit, Cheralith, Grayit und Brockit. Mineralien Welt. 22 (4):47-50
      • Schneeberg
        • Neustädtel
Belendorff, K. (2009): Dreyerit und Rhabdophan-(Nd) aus Schneeberg, Erzgebirge. Mineralien-Welt 20 (3), 27-29
Wittern: "Mineralfundorte in Deutschland", 2001
Leon Hupperichs collection
        • Wolfgang Maaßen Mine field
Krause, K., Bernhardt, H.-J., Effenberger, H. (2006): Schlegelite, Bi7O4(MoO4)2(AsO4)3, a new mineral from Schneeberg, Saxony, Germany. European Journal of Mineralogy, 18, 803-811.
  • Fukushima
KUSACHI, I., & HENMI, C. (1991). Sillenite from fuka, okayama prefecture, Japan. Mineralogical Journal, 15(8), 343-348.
  • Kagoshima
    • Yakushima-cho
      • Yakushima Island
Hori Mineralogy, Tokyo
  • Oita
KUSACHI, I., & HENMI, C. (1991). Sillenite from fuka, okayama prefecture, Japan. Mineralogical Journal, 15(8), 343-348.
  • Okayama
    • Takahashi City
      • Bicchu-cho (Bitchu-cho)
        • Fuka
Mineralogical Record: 27: 303.; KUSACHI, I., & HENMI, C. (1991). Sillenite from Fuka, Okayama prefecture, Japan. Mineralogical Journal, 15(8), 343-348.
Mexico (TL)
[Amer.Min.(1943) 28, 521-535 (525-526); Nickel & Nichols, 1991 - "Mineral Reference Manual"]
  • Sonora
    • Mun. de Navojoa
Dakota Matrix specimen (Phillips collection)
  • Zambezia Province
    • Alto Ligonha District
KUSACHI, I., & HENMI, C. (1991). Sillenite from fuka, okayama prefecture, Japan. Mineralogical Journal, 15(8), 343-348.
  • Lower Silesia
    • Szklarska Poręba District
Kozłowski, A., & Matyszczak, W. (2018). Oxygenic bismuth minerals in the NE part of the Karkonosze pluton (West Sudetes, SW Poland). Acta Geologica Polonica, 68(4).
  • Murmansk Oblast
    • Keivy Mountains
      • Western Keivy Massif
Voloshin A.V., Pakhomovskii Ya.A. [Волошин А. В., Пахомовский Я. А.] (1986): Minerals and evolution of mineral formation in amazonite pegmatites of the Kola Peninsula [Минералы и эволюция минералообразования в амазонитовых пегматитах Кольского полуострова]. Nauka, Leningrad, 168 pp. (in Russian).
  • Andalusia
    • Córdoba
      • Villanueva de Córdoba
Schnorrer, G. (2000): Die Minerale der ehemaligen Grube Espuela de San Miguel bei Villanueva de Cordoba, Prov. Cordoba in Spanien. Der Aufschluss, 51, 211-222. (in German)
  • Extremadura
    • Badajoz
      • Valle de la Serena
Calvo, M. (2009). Minerales y Minas de España. Vol. IV, Óxidos e Hidróxidos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 752 pp.
  • Wallis (Valais)
    • Le Trient Valley
      • Les Marécottes
- Meisser, N. (2012): La minéralogie de l'uranium dans le massif des Aiguilles Rouges. Matér. Géol. Suisse, Sér. géotech. 96, 183 p.
  • Connecticut
    • Middlesex Co.
      • Haddam
        • Haddam Neck
Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
  • Nevada
    • Lander Co.
      • Battle Mountain District
USGS Prof Paper 798D
Mineral and/or Locality  
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