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Stibnite

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Formula:
Sb
 
2
S
 
3
System:OrthorhombicColour:Lead-gray with pale blue ...
Hardness:2
Name:Re-named in 1832 by François Sulpice Beudant. According to Dioscorides, the original Greek names for the mineral were Στιβι "stibi", Στιμμι "stimmi", and Πλατνόπθαλμου. The former name became the Latin "stibium" and the old name for the element antimony (Sb). Named spiessglas in 1430 by Basil Velentine who showed the mineral contained sulphur. Also kniown as antimony glance, antimonite, and stibine.
Dimorph of:Metastibnite


Stibnite Group.

Classification of Stibnite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:2/D.08-20
Nickel-Strunz 10th (pending) edition ID:2.DB.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
B : M:S = 2:3
Dana 8th edition ID:2.11.2.1

2 : SULFIDES
11 : AmBnXp, with (m+n):p = 2:3
Hey's CIM Ref.:3.7.14

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
7 : Sulphides etc. of V, As, Sb and Bi
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Physical Properties of Stibnite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Lead-gray with pale blue tint
Streak:Lead grey
Hardness (Mohs):2
Hardness (Vickers):VHN100=71 - 86 kg/mm2
Comment:VHN on (010) section
Tenacity:Flexible
Cleavage:Perfect
Perfect on {010}, imperfect on {100}{110}
Fracture:Sub-Conchoidal
Density (measured):4.63 g/cm3
Density (calculated):4.625 g/cm3

Crystallography of Stibnite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:a = 11.229Å, b = 11.31Å, c = 3.8389Å
Ratio:a:b:c = 0.993 : 1 : 0.339
Unit Cell Volume:V 487.54 ų (Calculated from Unit Cell)
Z:4
Morphology:Slender to stout crystals
Twinning:Rare {130}{120}{310}
Crystal Atlas:
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Stibnite no.9 - Goldschmidt (1913-1926)
Stibnite no.10 - Goldschmidt (1913-1926)
Stibnite no.12 - Goldschmidt (1913-1926)
Stibnite no.31 - Goldschmidt (1913-1926)
Stibnite no.55 - Goldschmidt (1913-1926)
Stibnite no.110 - Goldschmidt (1913-1926)
Stibnite no.115 - Goldschmidt (1913-1926)

About Crystal Atlas

The mindat.org Crystal Atlas allows you to view a selection of crystal drawings of real and idealised crystal forms for this mineral and, in certain cases, 3d rotating crystal objects. The 3d models and HTML5 code are kindly provided by www.smorf.nl.

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Edge Lines | Miller Indicies | Axes

Transparency
Opaque | Translucent | Transparent

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Along a-axis | Along b-axis | Along c-axis | Start rotation | Stop rotation
X-Ray Powder Diffraction:
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Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data:
Data courtesy of RRUFF project at University of Arizona, used with permission.
X-Ray Powder Diffraction:
d-spacingIntensity
5.052 (55)
3.573 (65)
3.556 (70)
3.053 (95)
2.764 (100)
2.680 (50)
2.525 (45)

Optical Data of Stibnite

Type:Anisotropic
Anisotropism:Strong
Reflectivity:
400nmR1=31.1%R2= 53.3%
420nmR1=30.8%R2= 53.2%
440nmR1=30.6%R2= 53.0%
460nmR1=30.7%R2= 52.8%
480nmR1=31.0%R2= 52.2%
500nmR1=31.2%R2= 51.1%
520nmR1=31.4%R2= 49.7%
540nmR1=31.2%R2= 48.5%
560nmR1=30.8%R2= 47.2%
580nmR1=30.3%R2= 45.8%
600nmR1=29.7%R2= 44.5%
620nmR1=29.3%R2= 43.5%
640nmR1=29.2%R2= 42.6%
660nmR1=29.4%R2= 41.8%
680nmR1=29.6%R2= 41.1%
700nmR1=29.4%R2= 40.3%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 53.3%.
R1 shown in black, R2 shown in red
Colour in reflected light:white

Chemical Properties of Stibnite

Formula:
Sb
 
2
S
 
3
Simplified for copy/paste:Sb2S3
Essential elements:S, Sb
All elements listed in formula:S, Sb

Relationship of Stibnite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.DB.05Antimonselite
Sb
 
2
Se
 
3
2.DB.05Bismuthinite
Bi
 
2
S
 
3
2.DB.05Guanajuatite
Bi
 
2
(Se,S)
 
3
2.DB.05Metastibnite
Sb
 
2
S
 
3
2.DB.05Pääkkönenite
Sb
 
2
AsS
 
2
2.DB.10Ottemannite
beta Sn
 
2
S
 
3
2.DB.10Suredaite
PbSnS
 
3
2.DB.15Bowieite
(Rh,Ir,Pt)
 
2
S
 
3
2.DB.15Kashinite
(Ir,Rh)
 
2
S
 
3
2.DB.20Montbrayite
(Au,Sb)
 
2
Te
 
3
2.DB.25Edgarite
FeNb
 
3
S
 
6
2.DB.30Tarkianite
(Cu,Fe)(Re,Mo)
 
4
S
 
8
2.DB.35Cameronite
AgCu
 
7
Te
 
10
Related Minerals - Hey's Index Grouping:

- +
3.7.1Patrónite
VS
 
4
3.7.2Duranusite
As
 
4
S
3.7.3Dimorphite
As
 
4
S
 
3
3.7.4Realgar
As
 
4
S
 
4
3.7.5Pararealgar
As
 
4
S
 
4
3.7.6Alacránite
As
 
8
S
 
9
3.7.7Uzonite
As
 
4
S
 
5
3.7.8Orpiment
As
 
2
S
 
3
3.7.9Jeromite
3.7.10Laphamite
As
 
2
(Se,S)
 
3
3.7.11Getchellite
AsSbS
 
3
3.7.12Wakabayashilite
[(As,Sb)
 
6
S
 
9
][As
 
4
S
 
5
]
3.7.13Pääkkönenite
Sb
 
2
AsS
 
2
3.7.15Metastibnite
Sb
 
2
S
 
3
3.7.16Tellurantimony
Sb
 
2
Te
 
3
3.7.17Bismuthinite
Bi
 
2
S
 
3
3.7.18Nevskite
Bi(Se,S)
3.7.19Guanajuatite
Bi
 
2
(Se,S)
 
3
3.7.21Ikunolite
Bi
 
4
(S,Se)
 
3
3.7.22Laitakarite
Bi
 
4
Se
 
2
S
3.7.23Poubaite
PbBi
 
2
(Se,Te,S)
 
4
3.7.24Tellurobismuthite
Bi
 
2
Te
 
3
3.7.25Součekite
PbCuBi(S,Se)
 
3
3.7.26Tsumoite
BiTe
3.7.27Pilsenite
Bi
 
4
Te
 
3
3.7.28Hedleyite
Bi
 
7
Te
 
3
3.7.29Tetradymite
Bi
 
2
Te
 
2
S
3.7.30Joséite
Bi
 
4
TeS
 
2
3.7.31Joséite-B
Bi
 
4
Te
 
2
S
3.7.32Ingodite
Bi
 
2
TeS
3.7.33Sulphotsumoite
Bi
 
3
Te
 
2
S
3.7.34Kawazulite
Bi
 
2
Te
 
2
Se
3.7.36Skippenite
Bi
 
2
TeSe
 
2
3.7.37Kochkarite
PbBi
 
4
Te
 
7
3.7.38Rucklidgeite
(Bi,Pb)
 
3
Te
 
4
3.7.39Aleksite
PbBi
 
2
Te
 
2
S
 
2
3.7.40Junoite
Cu
 
2
Pb
 
3
Bi
 
8
(S,Se)
 
16

Other Names for Stibnite

Synonyms:
AlcoholAntimony GlanceGrey AntimonyLupus MetallorumPlatyophthalmite
SpiessglasStibiStimmi
Other Languages:
Basque:Estibina
Catalan:Estibina
Czech:Antimonit
Dutch:Stibniet
French:Stibine
German:Stibnit
Antimonglanz
Antimonit
Grauspiessglanzerz
Grauspiessglaserz
Platyophthalmit
Greek:Πλατνόφθαλμον
Στιβι
Στιμμι
Hungarian:Antimonit
Italian:Stibnite
Antimonio grigio
Antimonite
Stibina
Japanese:輝安鉱
Low Saxon:Stibnit
Polish:Antymonit
Portuguese:Estibina
Russian:Антимонит
Simplified Chinese:辉锑矿
Slovak:Antimonit
Spanish:Estibina
Antimonio gris
Antimonita
Estibnita
Platyophthalmita
Stibnita
Swedish:Antimonglans
Ukrainian:Антимоніт
Varieties:
Selenian Stibnite

Other Information

Thermal Behaviour:Melts at 546°C
Special Storage/
Display Requirements:
Stibnite is a very soft delicate minerals and should be kept in a container with a very soft cushion like cotton and not allowed to rub up against the sides of the box. Stibnite is a bit like graphite in that it will leave a streak when rubbed against paper. Over a period of many years, brilliant surfaces of freshly mined stibnite will become less shiny.
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 Stibnite

Reference List:

- +
Dana (1883), American Journal of Science: 26: 214.

Tokody (1937-38) Ann. Mus. Hungarici, Pars. Min.: 31: 165.

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: 270-275.

Zeitschrift für Kristallographie (1972): 135: 308-315.

McKee D.D., McMullen J.T. (1976), Zeitschrift für Kristallographie: 142: 447.

Kyono, A., Kimata, M., Matsuhisa, M., Miyashita, Y. and Okamoto, K. (2002): Low-temperature crystal structures of stibnite implying orbital overlap of Sb 5s2 inert pair electrons. Physics and Chemistry of Minerals, 29, 254–260.

Kuze, S., Du Boulay, D., Ishizawa, N., Saiki, A. and Pring, A. (2004): X-ray diffraction evidence for a monoclinic form of stibnite, Sb2S3, below 290 K. American Mineralogist, 89, 1022–1025.

Internet Links for Stibnite

Search Engines:
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  • External Links:
  • Look for Stibnite on Webmineral
  • Look for Stibnite on Athena Mineralogy
  • Look for Stibnite on Wikipedia
  • Look for Stibnite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Stibnite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • Search for Stibnite on Well-Arranged Molecules
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  • Fabre Minerals - search for Stibnite specimens
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  • Rare and Unusual minerals at Mineralogical Research Company
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  • Fine minerals from bisbeeborn.com
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Specimens:The following Stibnite specimens are currently listed for sale on minfind.com.

    Localities for Stibnite

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