Getchellite
A valid IMA mineral species
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About Getchellite
Formula:
AsSbS3
Colour:
Dark blood red
Lustre:
Resinous
Hardness:
1½ - 2
Specific Gravity:
3.92
Crystal System:
Monoclinic
Name:
Named after the type locality, the Getchell Mine, Adam Peak, Potosi District, Humboldt Co., Nevada, USA.
This page provides mineralogical data about Getchellite.
Unique Identifiers
Mindat ID:
1686
Long-form identifier:
mindat:1:1:1686:1
IMA Classification of Getchellite
Approved
IMA Formula:
SbAsS3
Approval year:
1965
First published:
1965
Classification of Getchellite
2.FA.35
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
A : With As, (Sb), S
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
A : With As, (Sb), S
2.11.1.2
2 : SULFIDES
11 : AmBnXp, with (m+n):p = 2:3
2 : SULFIDES
11 : AmBnXp, with (m+n):p = 2:3
3.7.11
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
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
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 for Standard |
|---|---|---|
| Get | 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 Getchellite
Resinous
Transparency:
Transparent
Comment:
pearly to vitreous on cleavage surface.
Colour:
Dark blood red
Comment:
Tarnishes to green to purple iridescence
Streak:
Orange-red
Hardness:
1½ - 2 on Mohs scale
Tenacity:
Flexible
Cleavage:
Perfect
Perfect on {001}
Perfect on {001}
Fracture:
Splintery
Density:
3.92 g/cm3 (Measured) 3.98 g/cm3 (Calculated)
Comment:
Calculated on synthetic material
Optical Data of Getchellite
Type:
Biaxial (+)
RI values:
nα = 2.72
2V:
Measured: 46°
Surface Relief:
Unknown
Anisotropism:
Weak
Dispersion:
r > v strong
Reflectivity:
| Wavelength | R1 (%) | R2 (%) |
|---|---|---|
| 400nm | 34.8% | 37.9% |
| 440nm | 33.6% | 36.9% |
| 480nm | 31.8% | 34.8% |
| 520nm | 29.5% | 31.9% |
| 560nm | 27.0% | 29.4% |
| 600nm | 25.7% | 28.0% |
| 640nm | 24.9% | 27.0% |
| 680nm | 24.2% | 26.5% |
| 700nm | 23.8% | 26.1% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 37.9%.
R1 shown in black, R2 shown in red
Chemistry of Getchellite
Mindat Formula:
AsSbS3
Element Weights:
Elements listed:
Crystallography of Getchellite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/a
Cell Parameters:
a = 11.8568 Å, b = 9.0152 Å, c = 10.1938 Å
β = 116.45°
β = 116.45°
Ratio:
a:b:c = 1.315 : 1 : 1.131
Unit Cell V:
975.57 ų (Calculated from Unit Cell)
Z:
8
Morphology:
Massive, subhedral crystals to 2 cm.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0003539 | Getchellite | Kyono A, Kimata M (2004) Structural reinvestigation of getchellite As0.98Sb1.02S3.00 American Mineralogist 89 696-700 |  | 2004 | 0 | 293 | |
| 0009491 | Getchellite | Guillermo T R, Wuensch B J (1973) The crystal structure of getchellite, AsSbS3 Acta Crystallographica B29 2536-2541 |  | 1973 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Loading XRD data...
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.66 Å | (100) |
| 2.915 Å | (100) |
| 2.880 Å | (100) |
| 4.96 Å | (80) |
| 4.46 Å | (80) |
| 2.815 Å | (80) |
| 4.08 Å | (60) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| High-? alteration and/or metamorphism | |
| 33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Getchellite
General Appearance of Type Material:
Transparent, dark red, sectile crystals
Place of Conservation of Type Material:
National Museum of Natural History (Smithsonian), Washington, D.C., USA, 118159, 118160.
Geological Setting of Type Material:
Epithermal gold deposit
Associated Minerals at Type Locality:
Synonyms of Getchellite
Other Language Names for Getchellite
Dutch:Getchelliet
German:Getchellit
Russian:Гетчеллит
Simplified Chinese:硫砷锑矿
Spanish:Getchellita
Traditional Chinese:硫砷銻礦
Common Associates
Associations Based on Photo Data:
| 95 photos of Getchellite associated with Orpiment | As2S3 |
| 28 photos of Getchellite associated with Realgar | As4S4 |
| 25 photos of Getchellite associated with Stibnite | Sb2S3 |
| 8 photos of Getchellite associated with Laffittite | AgHgAsS3 |
| 8 photos of Getchellite associated with Calcite | CaCO3 |
| 6 photos of Getchellite associated with Scorodite | Fe3+AsO4 · 2H2O |
| 6 photos of Getchellite associated with Pharmacolite | Ca(HAsO4) · 2H2O |
| 6 photos of Getchellite associated with Fluorite | CaF2 |
| 6 photos of Getchellite associated with Wakabayashilite | [(As,Sb)6S9][As4S5] |
| 3 photos of Getchellite associated with Quartz | SiO2 |
Related Minerals - Strunz-mindat Grouping
| 2.FA. | Bonazziite | As4S4 |
| 2.FA. | Anorpiment | As2S3 |
| 2.FA. | Paradimorphite | As4S3 |
| 2.FA.05 | Duranusite | As4S |
| 2.FA.10 | Dimorphite | As4S3 |
| 2.FA.15b | Pararealgar | As4S4 |
| 2.FA.15a | Realgar | As4S4 |
| 2.FA.15d | 'UM1970-18-S:As' | As4S4 |
| 2.FA.20 | Alacránite | As8S9 |
| 2.FA.25 | Uzonite | As4S5 |
| 2.FA.30 | Laphamite | As2Se3 |
| 2.FA.30 | Orpiment | As2S3 |
| 2.FA.40 | Wakabayashilite | [(As,Sb)6S9][As4S5] |
| 2.FA.40 | Kalgoorlieite | As2Te3 |
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.
Internet Links for Getchellite
mindat.org URL:
https://www.mindat.org/min-1686.html
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References for Getchellite
Reference List:
Weissberg, B. G. (1965) Getchellite, AsSbS3, a new mineral from Humboldt County, Nevada. American Mineralogist, 50 (11-12) 1817-1826
Bariand, Pierre; Cesbron, Fabien; Agrinier, Henri; Geffroy, Jacques; Issakhanian, V. (1968) La Getchellite AsSbS3 de Zarehshuran, Afshar, Iran. Bulletin de Minéralogie, 91 (4). 403-406 doi:10.3406/bulmi.1968.6250
Guillermo, T. R., Wuensch, B. J. (1973) The crystal structure of getchellite, AsSbS3. Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, 29 (11) 2536-2541 doi:10.1107/s0567740873006965
Localities for Getchellite
Showing 27 localities.
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.
Canada | |
| Sabina (2007) |
China | |
| Shifeng Dai et al. (2006) |
France | |
| Bourgoin et al. (2011) |
Iran | |
| Haas (n.d.) |
| Daliran (2008) |
| Asadi +8 other references | |
Italy | |
| - (n.d.) +1 other reference |
Japan | |
| Kato (1970) +2 other references |
Kyrgyzstan | |
| Kolesar et al. (1993) |
| Kolesar et al. (1993) | |
| |
Pakistan | |
| Ikram Mineralogy (Wholly owned & manage by Ikram Nature Exploration ) |
| Ikram Mineralogy (Wholly owned & manage by Ikram Nature Exploration ) |
Poland | |
| Kozłowski et al. (2024) |
| Kozłowski et al. (2024) | |
Russia | |
| Anthony et al. (1990) |
| Kasatkin et al. (2021) +1 other reference |
Spain | |
| Gutiérrez Villarias (nordeste de Leon) |
USA | |
| Rota (1989) |
| - (2005) | |
| Castor et al. (2004) |
| Weissberg (1965) +2 other references |
| - (2005) | |
| - (2005) | |
| Barrick Gold Corporation | |
| - (2005) | |
| Castor et al. (2004) |
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Zareh Shuran Mine, Takab County, West Azerbaijan Province, Iran