Sillénite
A valid IMA mineral species - grandfathered
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About Sillénite
Lars G. Sillén
Formula:
Bi12SiO20
Colour:
Olive-green, yellowish-green, gray- or brown-green
Lustre:
Adamantine
Specific Gravity:
9.16
Crystal System:
Isometric
Name:
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.
Unique Identifiers
Mindat ID:
3663
Long-form identifier:
mindat:1:1:3663:0
GUID
(UUID V4):
(UUID V4):
b84bfccd-e25c-4449-856b-ce7e73827e55
IMA Classification of Sillénite
Approved, 'Grandfathered' (first described prior to 1959)
First published:
1943
Classification of Sillénite
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 : 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
4 : SIMPLE OXIDES
3 : A2X3
7.13.13
7 : Oxides and Hydroxides
13 : Oxides of As, Sb and Bi
7 : Oxides and Hydroxides
13 : Oxides of As, Sb and Bi
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Sén | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Sillénite
Adamantine
Transparency:
Translucent
Colour:
Olive-green, yellowish-green, gray- or brown-green
Streak:
Yellowish to brownish white
Hardness:
VHN50=345 - 386 kg/mm2 - Vickers
Tenacity:
Waxy
Density:
9.16 g/cm3 (Measured) 9.18 g/cm3 (Calculated)
Optical Data of Sillénite
Type:
Isotropic
Comments:
RI greater than 2.5
Chemistry of Sillénite
Mindat Formula:
Bi12SiO20
Elements listed:
CAS Registry number:
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 V:
1,033.36 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Fine-grained masses at type locality. As cubes to 5 mm at Fuka.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.216 Å | (10) |
| 1.743 Å | (9) |
| 2.730 Å | (8) |
| 2.939 Å | (7) |
| 1.651 Å | (6) |
| 1.499 Å | (6) |
| 1.216 Å | (5) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 26 : Hadean detrital minerals | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites |
Type Occurrence of Sillénite
General Appearance of Type Material:
Fine-grained granular masses intimately admixed with bismutite. Waxy masses that closely resemble bismutite.
Place of Conservation of Type Material:
Harvard University, Cambridge, Massachusetts, USA, 83256.
National Museum of Natural History, Washington, D.C., USA, C1926.
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:
Reference:
Frondel, C. (1943) Mineralogy of the oxides and carbonates of Bismuth. American Mineralogist: 28: 521-535.
Other Language Names for Sillénite
Common Associates
Associated Minerals Based on Photo Data:
| 4 photos of Sillénite associated with Shattuckite | Cu5(Si2O6)2(OH)2 |
| 4 photos of Sillénite associated with Quartz | SiO2 |
| 3 photos of Sillénite associated with Mottramite | PbCu(VO4)(OH) |
| 3 photos of Sillénite associated with Duhamelite | (Pb,Bi,Ca)Cu(VO4)(OH,O) |
| 3 photos of Sillénite associated with Ajoite | (K,Na)Cu7AlSi9O24(OH)6 · 3H2O |
| 3 photos of Sillénite associated with Namibite | Cu(BiO)2(VO4)(OH) |
| 2 photos of Sillénite associated with Bismuth | Bi |
| 1 photo of Sillénite associated with Schlegelite | Bi7(AsO4)3(MoO4)2O4 |
| 1 photo of Sillénite associated with Petitjeanite | Bi3(PO4)2O(OH) |
| 1 photo of Sillénite associated with Pucherite | Bi(VO4) |
Related Minerals - Strunz-mindat Grouping
| 4.CB. | Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 |
| 4.CB. | Magnesiohögbomite-6N12S | Mg5Al11TiO23(OH) |
| 4.CB. | Zhenruite | (MoO3)2 · H2O |
| 4.CB. | Pengite | (Pb8Sb3+3)Σ11Sb5+9O35 |
| 4.CB. | Virgilluethite | MoO3 · H2O |
| 4.CB.05 | Brizziite | NaSb5+O3 |
| 4.CB.05 | Corundum | Al2O3 |
| 4.CB.05 | Ecandrewsite | (Zn,Fe2+,Mn2+)TiO3 |
| 4.CB.05 | Eskolaite | Cr2O3 |
| 4.CB.05 | Geikielite | MgTiO3 |
| 4.CB.05 | Hematite | Fe2O3 |
| 4.CB.05 | Ilmenite | Fe2+TiO3 |
| 4.CB.05 | Karelianite | V3+2O3 |
| 4.CB.05 | Melanostibite | Mn2+2Fe3+Sb5+O6 |
| 4.CB.05 | Pyrophanite | Mn2+TiO3 |
| 4.CB.05 | Akimotoite | (Mg,Fe2+)SiO3 |
| 4.CB.05 | Auroantimonate | AuSbO3 |
| 4.CB.05 | UM1998-11-O-AuHSb | Au+2Sb3+O2(OH) |
| 4.CB.05 | Tistarite | Ti3+2O3 |
| 4.CB.05 | Unnamed (Fe-Cr Oxide) | FeCrO3 |
| 4.CB.05 | Hemleyite | (Fe2+0.48Mg0.37Ca0.04Na0.04Mn2+0.03Al0.03Cr3+0.01)sum=1.00Si1.00O3 |
| 4.CB.10 | Avicennite | Tl2O3 |
| 4.CB.10 | Bixbyite-(Mn) | Mn3+2O3 |
| 4.CB.10 | Bixbyite-(Fe) | (Fe,Mn)2O3 |
| 4.CB.15 | Armalcolite | (Mg,Fe2+)Ti2O5 |
| 4.CB.15 | Sassite | Ti3+2Ti4+O5 |
| 4.CB.15 | Pseudobrookite | Fe2TiO5 |
| 4.CB.15 | Ferropseudobrookite | Fe2+Ti2O5 |
| 4.CB.15 | Griffinite | Al2TiO5 |
| 4.CB.15 | Pseudobrookite Group | |
| 4.CB.20 | Zincohögbomite-2N2S | [(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2 |
| 4.CB.20 | Zincohögbomite-2N6S | [(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2 |
| 4.CB.20 | Magnesiohögbomite-6N6S | [(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6 |
| 4.CB.20 | Magnesiohögbomite-2N3S | [(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2 |
| 4.CB.20 | Magnesiohögbomite-2N2S | [(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2 |
| 4.CB.20 | Ferrohögbomite-6N12S | [(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6 |
| 4.CB.20 | Magnesiohögbomite-2N4S | (Mg8.43Fe2+1.57)sum=10Al22Ti4+2O46(OH)2 |
| 4.CB.20 | Magnesiobeltrandoite-2N3S | (Mg6Al2)(Al18Fe3+2)O38(OH)2 |
| 4.CB.20 | Zincovelesite-6N6S | Zn3(Fe3+,Mn3+,Al,Ti)8O15(OH) |
| 4.CB.25 | Pseudorutile | Fe2Ti3O9 |
| 4.CB.25 | Kleberite | FeTi6O11(OH)5 |
| 4.CB.30 | Berdesinskiite | V3+2TiO5 |
| 4.CB.30 | Oxyvanite | V3+2V4+O5 |
| 4.CB.30 | Kaitianite | Ti3+2Ti4+O5 |
| 4.CB.35 | Olkhonskite | (Cr,V)2Ti3O9 |
| 4.CB.35 | Schreyerite | V3+2Ti3O9 |
| 4.CB.35 | Machiite | Al2Ti3O9 |
| 4.CB.35 | Vestaite | (Ti4+Fe2+)Ti4+3O9 |
| 4.CB.40 | Kamiokite | Fe2Mo3O8 |
| 4.CB.40 | Nolanite | V3+8Fe3+2O14(OH)2 |
| 4.CB.40 | Rinmanite | Zn2Sb2Mg2Fe4O14(OH)2 |
| 4.CB.40 | Iseite | Mn2Mo3O8 |
| 4.CB.40 | Majindeite | Mg2Mo3O8 |
| 4.CB.45 | Claudetite | As2O3 |
| 4.CB.45 | Stibioclaudetite | AsSbO3 |
| 4.CB.50 | Arsenolite | As2O3 |
| 4.CB.50 | Senarmontite | Sb2O3 |
| 4.CB.55 | Valentinite | Sb2O3 |
| 4.CB.60 | Bismite | Bi2O3 |
| 4.CB.65 | Sphaerobismoite | Bi2O3 |
| 4.CB.75 | Kyzylkumite | V3+Ti2O5(OH) |
| 4.CB.80 | Tietaiyangite | Fe3+4Fe2+TiO9 |
| 4.CB.85 | Liuite | FeTiO3 |
| 4.CB.90 | Luogufengite | Fe2O3 |
| 4.CB.95 | Wangdaodeite | FeTiO3 |
Other Information
Notes:
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.
Internet Links for Sillénite
mindat.org URL:
https://www.mindat.org/min-3663.html
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References for Sillénite
Localities for Sillénite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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).
All localities listed without proper references should be considered as questionable.
Australia | |
| Rankin et al. (2002) |
Belgium | |
| Jedwab et al. (1982) |
Bolivia | |
| Hatløy (2013) |
China | |
| Chunyan Dong et al. (2005) |
| Xiaoming Qu et al. (2001) |
Czech Republic | |
| Sejkora et al. (1993) |
| Viktor Goliáš et al. (2016) |
| Sejkora (1998) |
Germany | |
| 62. +1 other reference |
| Belendorff (2009) |
| Wittern (2001) | |
| Leon Hupperichs collection | |
| Krause et al. (2006) |
| Witzke (2011) |
Japan | |
| Kusachi et al. (1991) |
| Hori Mineralogy |
| Kusachi et al. (1991) |
| Mineralogical Record: 27: 303. +1 other reference |
| Nagashima et al. (2021) |
Mexico (TL) | |
| Frondel (1943) | |
| Dakota Matrix specimen (Phillips collection) |
Mozambique | |
| Kusachi et al. (1991) |
Poland | |
| Kozłowski et al. (2018) |
Russia | |
| Voloshin A.V. et al. (1986) |
Spain | |
| Schnorrer (2000) |
| Calvo (2009) |
Switzerland | |
| Meisser (2012) |
USA | |
| Schooner (circa 1980s) |
| USGS Prof Paper 798D |
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