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Sénarmontite

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Formula:
Sb2O3
System:
Isometric
Colour:
Colourless to gray
Hardness:
2 - 2½
Name:
Named after Henri Hureau de Sénarmont (1808-1862), Professor of Mineralogy, School of Mines, Paris, who first described the species.
This page provides mineralogical data about Sénarmontite.

Classification of Sénarmontite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
4.CB.50

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
4.3.9.2

4 : SIMPLE OXIDES
3 : A2X3
7.13.3

7 : Oxides and Hydroxides
13 : Oxides of As, Sb and Bi
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First Recorded Occurrence of Sénarmontite

Year of Discovery:
1851

Physical Properties of Sénarmontite

Sub-Adamantine, Resinous
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
Colourless to gray
Streak:
White
Hardness (Mohs):
2 - 2½
Tenacity:
Brittle
Cleavage:
Poor/Indistinct
{111} in traces.
Fracture:
Irregular/Uneven
Density:
5.5 g/cm3 (Measured)    5.584 g/cm3 (Calculated)

Crystallography of Sénarmontite

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3m
Cell Parameters:
a = 11.1519(2) Å
Unit Cell Volume:
V 1,386.90 ų (Calculated from Unit Cell)
Z:
16
Morphology:
Octahedral crystals, modified by cube and dodecahedron.
Comment:
On synthetic material
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.
X-Ray Powder Diffraction Data:
d-spacingIntensity
6.44 (12)
3.218 (100)
2.788 (40)
2.559 (11)
1.972 (42)
1.681 (35)
1.279 (12)

Optical Data of Sénarmontite

Type:
Isotropic
RI values:
n = 2.087
Max Birefringence:
δ = 0.000 - Isotropic minerals have no birefringence
Surface Relief:
Very High
Type:
Anisotropic
Anisotropism:
Strong anomalous anisotropism, sectored or zoned.

Chemical Properties of Sénarmontite

Formula:
Sb2O3
Essential elements:
All elements listed in formula:

Relationship of Sénarmontite 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.05Romanite(◻,Pb,Ca)UFe22+(Ti,Fe3+)6Ti12O38
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.55ValentiniteSb2O3
4.CB.60BismiteBi2O3
4.CB.65SphaerobismoiteBi2O3
4.CB.70SilléniteBi12SiO20
4.CB.75KyzylkumiteTi2V3+O5(OH)
4.CB.80TietaiyangiteFe43+Fe2+TiO9
7.13.1ArsenoliteAs2O3
7.13.2ClaudetiteAs2O3
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
7.13.13SilléniteBi12SiO20

Other Names for Sénarmontite

Name in Other Languages:
Simplified Chinese:方锑矿
Spanish:Senarmontita
Traditional Chinese:方銻礦

Other Information

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 Sénarmontite

Reference List:
Dana (1851), American Journal of Science: 12: 209.

de Sénarmont (1851), Ann. chim. phys.: 31: 504.

Bozorth (1923), Am. Chem. Soc. Journal: 45: 1621.

Hocart (1934), Bull. soc. min.: 57: 90.

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: 544-545.

Acta Crystallographica (1975): B31: 2016-2018.

Internet Links for Sénarmontite

Localities for Sénarmontite

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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