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Sillénite

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Navojoa, Mun. de Navojoa, Sonora, Mexico
© JBS 2006

Show Sillénite Photos (3)
Formula:
Bi
 
12
SiO
 
20
System:IsometricColour:Olive-green, ...
Lustre:Waxy, Dull, Earthy
Name:Named after Lars Gunnar Sillén (b. 1916), of Stockholm, Sweden, who worked extensively on bismuth-oxygen compounds.
This page provides mineralogical data about Sillénite.

Classification of Sillénite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:4.3.12.1

4 : SIMPLE OXIDES
3 : A2X3
Hey's CIM Ref.:7.13.13

7 : Oxides and Hydroxides
13 : Oxides of As, Sb and Bi
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Type Occurrence of Sillénite

Type Locality:Durango, Mexico

Physical Properties of Sillénite

Lustre:Waxy, Dull, Earthy
Diaphaneity (Transparency):Translucent on thin edges
Colour:Olive-green, yellowish-green, gray- or brown-green
Density (calculated):8.8 g/cm3

Crystallography of Sillénite

Crystal System:Isometric
Class (H-M):4 3m - Hextetrahedral
Morphology:Fine-grained masses.

Optical Data of Sillénite

Type:Isotropic
Type:Isotropic

Chemical Properties of Sillénite

Formula:
Bi
 
12
SiO
 
20
Essential elements:Bi, O, Si
All elements listed in formula:Bi, O, Si

Relationship of Sillénite to other Species

Related Minerals - Nickel-Strunz Grouping):
4.CB.05Brizziite
NaSb
5+
 
O
 
3
4.CB.05Corundum
Al
 
2
O
 
3
4.CB.05Ecandrewsite
(Zn,Fe
2+
 
,Mn
2+
 
)TiO
 
3
4.CB.05Eskolaite
Cr
 
2
O
 
3
4.CB.05Geikielite
MgTiO
 
3
4.CB.05Hematite
Fe
 
2
O
 
3
4.CB.05Ilmenite
Fe
2+
 
TiO
 
3
4.CB.05Karelianite
V
 
2
O
 
3
4.CB.05Melanostibite
Mn
2+
 
(Sb
5+
 
,Fe
3+
 
)O
 
3
4.CB.05Pyrophanite
Mn
2+
 
TiO
 
3
4.CB.05Auroantimonate
AuSbO
 
3
4.CB.05Romanite
([],Pb,Ca)UFe
2+
2
(Ti,Fe
3+
 
)
 
6
Ti
 
12
O
 
38
4.CB.10Avicennite
Tl
 
2
O
 
3
4.CB.10Bixbyite
(Mn
3+
 
,Fe
3+
 
)
 
2
O
 
3
4.CB.15Armalcolite
(Mg,Fe
2+
 
)Ti
 
2
O
 
5
4.CB.15Pseudobrookite
Fe
 
2
TiO
 
5
4.CB.15Mongshanite
(Mg,Cr,Fe
2+
 
)
 
2
(Ti,Zr)
 
5
O
 
12
4.CB.20Zincohögbomite-2N2S
Ti(Zn,Mg,Fe)
 
2
Al
 
8
O
 
15
(OH)
4.CB.20Zincohögbomite-2N6S
Ti(Zn,Mg,Fe)
 
6
Al
 
16
O
 
31
(OH)
4.CB.20Magnesiohögbomite-6N6S
Ti(Mg,Fe)
 
2
Al
 
8
O
 
15
(OH)
4.CB.20Magnesiohögbomite-2N3S
Ti(Mg,Fe)
 
3
Al
 
10
O
 
19
(OH)
4.CB.20Magnesiohögbomite-2N2S
Ti(Mg,Fe)
 
2
Al
 
8
O
 
15
(OH)
4.CB.20Ferrohögbomite-6N12S
Ti(Fe,Mg)
 
4
Al
 
12
O
 
23
(OH)
4.CB.25Pseudorutile
Fe
 
2
Ti
 
3
O
 
9
4.CB.25Tietaiyangite
Fe
3+
4
Fe
2+
 
TiO
 
9
4.CB.30Berdesinskiite
V
3+
2
TiO
 
5
4.CB.35Kyzylkumite
V
 
2
Ti
 
3
O
 
9
4.CB.35Olkhonskite
(Cr,V)
 
2
Ti
 
3
O
 
9
4.CB.35Schreyerite
V
 
2
Ti
 
3
O
 
9
4.CB.40Kamiokite
Fe
 
2
Mo
 
3
O
 
8
4.CB.40Nolanite
(V,Fe,Fe,Ti)
 
10
O
 
14
(OH)
 
2
4.CB.40Rinmanite
Zn
 
2
Sb
 
2
Mg
 
2
Fe
 
4
O
 
14
(OH)
 
2
4.CB.45Claudetite
As
 
2
O
 
3
4.CB.45Stibioclaudetite
AsSbO
 
3
4.CB.50Arsenolite
As
 
2
O
 
3
4.CB.50Sénarmontite
Sb
 
2
O
 
3
4.CB.55Valentinite
Sb
 
2
O
 
3
4.CB.60Bismite
Bi
 
2
O
 
3
4.CB.65Sphaerobismoite
Bi
 
2
O
 
3
Related Minerals - Hey's Index Grouping:
7.13.1Arsenolite
As
 
2
O
 
3
7.13.2Claudetite
As
 
2
O
 
3
7.13.3Sénarmontite
Sb
 
2
O
 
3
7.13.4Valentinite
Sb
 
2
O
 
3
7.13.5Cervantite
Sb
3+
 
Sb
5+
 
O
 
4
7.13.6Stibiconite
SbSb
 
2
O
 
6
(OH)
7.13.7Bahianite
Al
 
5
Sb
 
3
O
 
14
(OH)
 
2
7.13.8Cyanophyllite
(Cu,Al)
 
3
[(OH)
 
6
|Sb
5+
 
(OH)
 
6
]
7.13.9Bismutostibiconite
Bi(Sb
5+
 
,Fe
3+
 
)
 
2
O
 
7
7.13.107.13.11Stibivanite
Sb
 
2
VO
 
5
7.13.12Bismite
Bi
 
2
O
 
3

Other Names for Sillénite

German names:
Sillénit
Japanese names:
方蒼鉛鉱
Russian names:
Силленит
Spanish names:
Sillénita

Other Information

Health Warning: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.

Internet Links for Sillénite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Sillénite in the Natural History Museum (London) online catalogue
  • Sillénite details from Handbook of Mineralogy (PDF)
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    Localities for Sillénite

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    The 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.
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    (TL) indicates type locality. ? 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.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Mariánské Lázně (Marienbad)
          • Slavkovský Les Mts
    		Sejkora, J., Ridkosil, T., Gabasova, A. (1993): Sillénite from Smrkovec near Marianské Lazné. J.Czech Geol.Soc., 38, 244-245
      • Ústí Region
        • Krušné Hory Mts (Erzgebirge)
          • Krupka (Graupen)
            • Knöttel (Knötel; Knödel) area
    		Lapis 23(4), 18-34 (1998)
    Germany
     
    • Saxony
      • Erzgebirge
    		Gröbner, J., Grimm, O. & Zienau, H. (2005): Neufunde interessanter Wismut- und Uranmineralien am Schaarschacht, Johanngeorgenstadt, Sachsen. Lapis 30 (6), 44-51; 62.
        • Schneeberg District
          • Neustädtel
    		Wittern: "Mineralfundorte in Deutschland", 2001
          • 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
            • Bitchu-cho (Bicchu-cho)
    		Mineralogical Record: 27: 303.
    • Nansei Archipelago
      • Kagoshima Prefecture
        • Yakushima Island
    		Hori Mineralogy, Tokyo
    Mexico
     
    [Amer.Min.(1943) 28, 521-535 (525-526); Nickel & Nichols, 1991 - "Mineral Reference Manual"]
    • Sonora
      • Mun. de Navojoa
    		No reference listed
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Western Keivy Massif
    		A.V. Voloshin, Ya.A. Pakhomovskii Minerals and mineralformation evolution in amazonite pegmatites of Kola peninsula, - Leningrad, Nauka, 1986, pp.168.
    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)
    Mineral and/or Locality
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