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Sillénite

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Formula:
Bi12SiO20
System:
Isometric
Colour:
Olive-green, ...
Lustre:
Adamantine
Name:
Named after Lars Gunnar Sillén (July 11, 1916 - July 23, 1960), of Stockholm, Sweden, who worked extensively on bismuth-oxygen compounds.
This page provides mineralogical data about Sillénite.


Classification of Sillénite

Approved, 'Grandfathered' (first described prior to 1959)
4.CB.70

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
4.3.12.1

4 : SIMPLE OXIDES
3 : A2X3
7.13.13

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

Type Occurrence of Sillénite

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:

Physical Properties of Sillénite

Adamantine
Diaphaneity (Transparency):
Translucent
Colour:
Olive-green, yellowish-green, gray- or brown-green
Streak:
Yellowish to brownish white
Hardness (Vickers):
VHN50=345 - 386 kg/mm2
Tenacity:
Waxy
Density:
9.16 g/cm3 (Measured)    8.8 g/cm3 (Calculated)
Comment:
Caculated also 9.18

Crystallography of Sillénite

Crystal System:
Isometric
Class (H-M):
2 3 - Tetartoidal
Space Group:
I2 3
Cell Parameters:
a = 10.110(2) Å
Unit Cell Volume:
V 1,033.36 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Fine-grained masses.
X-Ray Powder Diffraction Data:
d-spacingIntensity
3.216 (10)
1.743 (9)
2.730 (8)
2.939 (7)
1.651 (6)
1.499 (6)
1.216 (5)

Optical Data of Sillénite

Type:
Isotropic
Type:
Isotropic
Comments:
RI greater than 2.5

Chemical Properties of Sillénite

Formula:
Bi12SiO20
All elements listed in formula:
CAS Registry number:
12272-31-0

CAS Registry numbers are published by the American Chemical Society

Relationship of Sillénite to other Species

4.CB.05BrizziiteNaSb5+O3
4.CB.05CorundumAl2O3
4.CB.05Ecandrewsite(Zn,Fe2+,Mn2+)TiO3
4.CB.05EskolaiteCr2O3
4.CB.05GeikieliteMgTiO3
4.CB.05HematiteFe2O3
4.CB.05IlmeniteFe2+TiO3
4.CB.05KarelianiteV23+O3
4.CB.05MelanostibiteMn2+(Sb5+,Fe3+)O3
4.CB.05PyrophaniteMn2+TiO3
4.CB.05Akimotoite(Mg,Fe2+)SiO3
4.CB.05AuroantimonateAuSbO3
4.CB.05UM1998-11-O-AuHSbAu2+Sb3+O2(OH)
4.CB.05TistariteTi23+O3
4.CB.10AvicenniteTl2O3
4.CB.10BixbyiteMn23+O3
4.CB.15Armalcolite(Mg,Fe2+)Ti2O5
4.CB.15PseudobrookiteFe2TiO5
4.CB.20Zincohögbomite-2N2S[(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2
4.CB.20Zincohögbomite-2N6S[(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2
4.CB.20Magnesiohögbomite-6N6S[(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6
4.CB.20Magnesiohögbomite-2N3S[(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2
4.CB.20Magnesiohögbomite-2N2S[(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2
4.CB.20Ferrohögbomite-6N12S[(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6
4.CB.25PseudorutileFe2Ti3O9
4.CB.25KleberiteFeTi6O11(OH)5
4.CB.30BerdesinskiiteV23+TiO5
4.CB.30OxyvaniteV23+V4+O5
4.CB.35Olkhonskite(Cr,V)2Ti3O9
4.CB.35SchreyeriteV23+Ti3O9
4.CB.40KamiokiteFe2Mo3O8
4.CB.40Nolanite(V3+,Fe3+,Fe2+,Ti)10O14(OH)2
4.CB.40RinmaniteZn2Sb2Mg2Fe4O14(OH)2
4.CB.40IseiteMn2Mo3O8
4.CB.40MajindeiteMg2Mo3O8
4.CB.45ClaudetiteAs2O3
4.CB.45StibioclaudetiteAsSbO3
4.CB.50ArsenoliteAs2O3
4.CB.50SenarmontiteSb2O3
4.CB.55ValentiniteSb2O3
4.CB.60BismiteBi2O3
4.CB.65SphaerobismoiteBi2O3
4.CB.75KyzylkumiteTi2V3+O5(OH)
4.CB.80TietaiyangiteFe43+Fe2+TiO9
7.13.1ArsenoliteAs2O3
7.13.2ClaudetiteAs2O3
7.13.3SenarmontiteSb2O3
7.13.4ValentiniteSb2O3
7.13.5CervantiteSb3+Sb5+O4
7.13.6Stibiconite
7.13.7BahianiteAl5Sb3O14(OH)2
7.13.8Cualstibite-1M(Cu,Al)3(OH)6[Sb5+(OH)6]
7.13.9BismutostibiconiteBi(Sb5+,Fe3+)2O7
7.13.107.13.11StibivaniteSb2VO5
7.13.12BismiteBi2O3

Other Names for Sillénite

Name in Other Languages:
German:Sillénit
Japanese:方蒼鉛鉱
Simplified Chinese:软铋矿
Spanish:Sillénita
Traditional Chinese:軟鉍礦

Other Information

Other Information:
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 Sillénite

Reference List:
Frondel, C. (1943): Mineralogy of the oxides and carbonates of Bismuth. American Mineralogist: 28: 521-535.

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: 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, issue 1, 111-114

Internet Links for Sillénite

mindat.org URL:
http://www.mindat.org/min-3663.html
Please feel free to link to this page.

Localities for Sillénite

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.
Australia
 
  • 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.
Bolivia
 
  • La Paz Department
    • Lake Represa Incachace
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.
China
 
  • Qinghai Province
    • Haixi Autonomous Prefecture
      • 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 Province
    • 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
 
  • Bohemia (Böhmen; Boehmen)
    • 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)
Germany
 
  • Saxony
    • Erzgebirge
      • 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 District
        • 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.
Japan
 
  • Honshu Island
    • Chugoku Region
      • Okayama Prefecture
        • 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.
    • Tohoku Region
      • Fukushima Prefecture
KUSACHI, I., & HENMI, C. (1991). Sillenite from fuka, okayama prefecture, Japan. Mineralogical Journal, 15(8), 343-348.
  • Kyushu Region
    • Nansei Archipelago
      • Kagoshima Prefecture
        • Yakushima-cho
          • Yakushima Island
Hori Mineralogy, Tokyo
    • Oita prefecture
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)
Mozambique
 
  • Zambezia Province
    • Alto Ligonha District
KUSACHI, I., & HENMI, C. (1991). Sillenite from fuka, okayama prefecture, Japan. Mineralogical Journal, 15(8), 343-348.
Russia
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • 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).
Spain
 
  • 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.
Switzerland
 
  • 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.
USA
 
  • 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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