Getchellite (original) (raw)
A valid IMA mineral species
About GetchelliteHide
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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 IdentifiersHide
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Long-form identifier:
mindat:1:1:1686:1
9fca7cf1-fd4b-4c6b-973c-0654262ac33f
IMA Classification of GetchelliteHide
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Type description reference:
Classification of GetchelliteHide
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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
2.11.1.2
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
Mineral SymbolsHide
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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 GetchelliteHide
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Comment:
pearly to vitreous on cleavage surface.
Comment:
Tarnishes to green to purple iridescence
Cleavage:
Perfect
Perfect on {001}
Density:
3.92 g/cm3 (Measured) 3.98 g/cm3 (Calculated)
Comment:
Calculated on synthetic material
Optical Data of GetchelliteHide
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δ = 2.720
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
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 GetchelliteHide
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Crystallography of GetchelliteHide
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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 11.8568 Å, b = 9.0152 Å, c = 10.1938 Å
β = 116.45°
Ratio:
a:b:c = 1.315 : 1 : 1.131
Unit Cell V:
975.57 ų (Calculated from Unit Cell)
Morphology:
Massive, subhedral crystals to 2 cm.
Crystal StructureHide
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X-Ray Powder DiffractionHide
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Image Loading
Radiation - Copper Kα
Data Set:
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 EnvironmentHide
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Type Occurrence of GetchelliteHide
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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:
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 GetchelliteHide
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Other Language Names for GetchelliteHide
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Simplified Chinese:硫砷锑矿
Traditional Chinese:硫砷銻礦
Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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Other InformationHide
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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 GetchelliteHide
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References for GetchelliteHide
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Reference List:
Localities for GetchelliteHide
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This 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.
Locality ListHide
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- 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.