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
GUID
(UUID V4):
(UUID V4):
9fca7cf1-fd4b-4c6b-973c-0654262ac33f
IMA Classification of Getchellite
Approved
IMA Formula:
SbAsS3
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 |
---|---|---|
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 = 2.720
2V:
Measured: 46°
Max Birefringence:
δ = 2.720
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
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). Top of box is 100%. Peak reflectance is 37.9%.
R1 shown in black, R2 shown in red
Chemistry of Getchellite
Mindat Formula:
AsSbS3
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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2x2x2 | 3x3x3 | 4x4x4
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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
Image Loading
Radiation - Copper Kα
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-𝑇 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:
Reference:
Weissberg, B.G. (1965) Getchellite, AsSbS3, a new mineral from Humboldt County, Nevada. American Mineralogist: 50: 1817-1826.
Synonyms of Getchellite
Other Language Names for Getchellite
German:Getchellit
Russian:Гетчеллит
Simplified Chinese:硫砷锑矿
Spanish:Getchellita
Traditional Chinese:硫砷銻礦
Common Associates
Associated Minerals Based on Photo Data:
76 photos of Getchellite associated with Orpiment | As2S3 |
25 photos of Getchellite associated with Realgar | As4S4 |
14 photos of Getchellite associated with Stibnite | Sb2S3 |
8 photos of Getchellite associated with Laffittite | AgHgAsS3 |
6 photos of Getchellite associated with Wakabayashilite | [(As,Sb)6S9][As4S5] |
6 photos of Getchellite associated with Calcite | CaCO3 |
6 photos of Getchellite associated with Fluorite | CaF2 |
6 photos of Getchellite associated with Scorodite | Fe3+AsO4 · 2H2O |
6 photos of Getchellite associated with Pharmacolite | Ca(HAsO4) · 2H2O |
3 photos of Getchellite associated with Quartz | SiO2 |
Related Minerals - Strunz-mindat Grouping
2.FA. | Anorpiment | As2S3 |
2.FA. | Bonazziite | As4S4 |
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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Please feel free to link to this page.
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References for Getchellite
Reference List:
Localities for Getchellite
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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Canada | |
| SABINA (1970) |
China | |
| Shifeng Dai et al. (2006) |
France | |
| Bourgoin et al. (2011) |
Iran | |
| P Haas collection |
| Daliran (2008) |
Asadi +6 other references | |
Italy | |
| Brizio et al. (2014) |
Japan | |
| American Mineralogist +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 ) |
Russia | |
| Anthony et al. (1990) |
Spain | |
| Gutiérrez Villarias (nordeste de Leon) |
USA | |
| Min.Rec.:20:469. |
- (2005) | |
| Castor et al. (2004) |
| American Mineralogist +2 other references |
- (2005) | |
- (2005) | |
- (2005) +1 other reference | |
- (2005) | |
| Castor et al. (2004) |
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Zareh Shuran Mine, Takab County, West Azerbaijan Province, Iran