Stumpflite (original) (raw)
A valid IMA mineral species
About StumpfliteHide
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Sb may be replaced by minor Bi.
Specific Gravity:
13.52 (Calculated)
Name:
Named in 1972 by Zdeněk Johan and Paul Picot in honor of Eugen Friedrich Stumpfl (27 November 1931, Munich, Germany - 12 July 2004, Innsbruck, Austria), professor of mineralogy, Mining Institute, Leoben (Austria) and authority on ore microscopy. The mineral eugenite is also named after him.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:3816:0
a5d11240-745a-49b5-a5bd-743c868583a1
IMA Classification of StumpfliteHide
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Type description reference:
Classification of StumpfliteHide
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2.CC.05
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
C : With Ni, Fe, Co, PGE, etc.
3.12.55
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
12 : Sulphides etc. of the platinum metals
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 |
|---|---|---|
| Stm | 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 StumpfliteHide
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Hardness:
VHN50=385 kg/mm2 - Vickers
Density:
13.52 g/cm3 (Calculated)
Optical Data of StumpfliteHide
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Anisotropism:
Strong, in brownish yellow.
Reflectivity:
| Wavelength | R1 | R2 |
|---|---|---|
| 420nm | 45.9% | 49.3% |
| 440nm | 49.1% | 52.2% |
| 460nm | 52.0% | 54.7% |
| 480nm | 54.6% | 57.3% |
| 500nm | 56.6% | 59.5% |
| 520nm | 58.2% | 61.5% |
| 540nm | 59.3% | 63.0% |
| 560nm | 60.2% | 64.5% |
| 580nm | 61.1% | 65.7% |
| 600nm | 62.1% | 66.7% |
| 620nm | 62.9% | 67.6% |
| 640nm | 63.7% | 68.5% |
| 660nm | 64.5% | 69.3% |
| 680nm | 65.0% | 70.0% |
| 700nm | 65.1% | 70.7% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 70.7%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Cream
Chemistry of StumpfliteHide
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Mindat Formula:
PtSb
Sb may be replaced by minor Bi.
Crystallography of StumpfliteHide
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Class (H-M):
6/m m m _(_6/_m_2/_m_2/m ) - Dihexagonal Dipyramidal
Cell Parameters:
a = 4.175(2) Å, c = 5.504(2) Å
Unit Cell V:
83.08 ų (Calculated from Unit Cell)
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0011590 | Stumpflite | Wyckoff R W G (1963) Second edition. Interscience Publishers, New York, New York Crystal Structures 1 85-237 | 1963 | 0 | 293 | ||
| 0016977 | Stumpflite | Thomassen L (1929) Ueber Kristallstrukturen einiqer binaerer Verbindungen der Platinmetalle II _cod_database_code 1010041 Zeitschrift fur Physikalische Chemie B4 277-287 | 1929 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.027 Å | (100) |
| 2.192 Å | (100) |
| 2.088 Å | (80) |
| 3.618 Å | (60) |
| 1.512 Å | (50) |
| 1.720 Å | (40) |
| 1.224 Å | (40) |
Comments:
Driekop mine, Limpopo, South Africa. Data from the type description.
Geological EnvironmentHide
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Type Occurrence of StumpfliteHide
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General Appearance of Type Material:
Massive grains, to a few tenths of a mm.
Place of Conservation of Type Material:
Bureau de Recherches Géologiques et Minières (B.R.G.M.), Orléans; National School of Mines, Paris, France.
Associated Minerals at Type Locality:
Reference:
Johan, Z., Picot, P. (1972) La stumpflite, Pt(Sb,Bi), un nouveau minéral. Bulletin de la Société Française de Minéralogie et de Cristallographie: 95: 610-613.
Synonyms of StumpfliteHide
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Other Language Names for StumpfliteHide
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Relationship of Stumpflite to other SpeciesHide
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Other Members of this group:
Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 2.CC. | Tilkerodeite | Pd2HgSe3 | Trig. 3_m_ _(_32/m ) : _P_3_m_1 |
|---|---|---|---|
| 2.CC. | UM2007-26-S:CuFeIrNiPtRh | (Ir,Cu,Ni,Pt,Rh,Fe)9S11 | |
| 2.CC. | Crowningshieldite | (Ni0.9Fe0.1)S | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c |
| 2.CC. | Eliopoulosite | V7S8 | Trig. 32 : _P_3221 |
| 2.CC. | Kuvaevite | Ir5Ni10S16 | Trig. 3_m_ _(_32/m ) : R_3_m |
| 2.CC. | Torryweiserite | Rh5Ni10S16 | Trig. 3_m_ _(_32/m ) : R_3_m |
| 2.CC. | Tamuraite | Ir5Fe10S16 | Trig. 3_m_ _(_32/m ) : R_3_m |
| 2.CC. | Ferrotorryweiserite | Rh5Fe10S16 | Trig. 3_m_ _(_32/m ) : R_3_m |
| 2.CC.05 | Achávalite | FeSe | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c |
| 2.CC.05 | Breithauptite | NiSb | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c |
| 2.CC.05 | Freboldite | CoSe | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c |
| 2.CC.05 | Kotulskite | Pd(Te,Bi)2-x (x ≈ 0.4) | Hex. |
| 2.CC.05 | Langisite | CoAs | Hex. 6 : _P_63 |
| 2.CC.05 | Nickeline | NiAs | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m c m |
| 2.CC.05 | Sederholmite | beta-NiSe | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c |
| 2.CC.05 | Sobolevskite | PdBi | Hex. |
| 2.CC.05 | Sudburyite | PdSb | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c |
| 2.CC.05 | Jaipurite | CoS | Hex. |
| 2.CC.05 | Zlatogorite | NiCuSb2 | Trig. 3_m_ _(_32/m ) : P_31_m |
| 2.CC.10 | Pyrrhotite | Fe1-xS | Mon. |
| 2.CC.10 | Smythite | (Fe,Ni)3+xS4 (x=0-0.3) | Trig. 3_m_ _(_32/m ) : R_3_m |
| 2.CC.10 | Troilite | FeS | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c |
| 2.CC.15 | Cherepanovite | RhAs | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 2.CC.15 | Modderite | (Co,Fe)As | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 2.CC.15 | Ruthenarsenite | (Ru,Ni)As | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 2.CC.15 | Westerveldite | (Fe,Ni,Co)As | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 2.CC.15 | Minakawaite | RhSb | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 2.CC.20 | Millerite | NiS | Trig. 3_m_ : R_3_m |
| 2.CC.20 | Mäkinenite | γ-NiSe | Trig. 3_m_ |
| 2.CC.20 | UM1990-38-S:CuFeIrNiPtRh | (Ni,Fe,Rh,Cu,Ir,Pt)S | |
| 2.CC.25 | Mackinawite | FeS | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _P_4/n m m |
| 2.CC.30 | Hexatestibiopanickelite | (Pd,Ni)(Sb,Te) ? | Hex. |
| 2.CC.30 | Vavřínite | Ni2SbTe2 | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c |
| 2.CC.35a | Braggite | PdPt3S4 | Tet. 4/m : _P_42/m |
| 2.CC.35b | Cooperite | PtS | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _P_42/m m c |
| 2.CC.35a | Vysotskite | PdS | Tet. 4/m : _P_42/m |
| 2.CC.45 | Jacutingaite | Pt2HgSe3 | Trig. 3_m_ _(_32/m ) : _P_3_m_1 |
| 2.CC.50 | Imgreite | NiTe (?) | Hex. |
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 StumpfliteHide
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References for StumpfliteHide
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Localities for StumpfliteHide
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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.