Temagamite
A valid IMA mineral species
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About Temagamite
Formula:
Pd3HgTe3
Colour:
Bright white
Lustre:
Metallic
Hardness:
2½
Specific Gravity:
9.45 (Calculated)
Crystal System:
Trigonal
Member of:
Name:
Named after its discovery locality, Temagami Mine, Temagani Island, Ontario, Canada (an Ojibway word for "deep-clear water").
Structure details (Laufek et al., 2016):
* layer modules set along the c axis
* module A: isolated PdTe6 octahedra, having common faces with octahedra from neighbouring modules
* modules B & F: PdTe6 octahedra and PdTe4 squares
* modules C, D, and E: corner-sharing PdTe4 squares
* Hg atoms present within the anti-cubooctahedral voids formed by Te atoms
* Pd–Pd and Pd–Hg bonds present
* layer modules set along the c axis
* module A: isolated PdTe6 octahedra, having common faces with octahedra from neighbouring modules
* modules B & F: PdTe6 octahedra and PdTe4 squares
* modules C, D, and E: corner-sharing PdTe4 squares
* Hg atoms present within the anti-cubooctahedral voids formed by Te atoms
* Pd–Pd and Pd–Hg bonds present
Unique Identifiers
Mindat ID:
3908
Long-form identifier:
mindat:1:1:3908:2
IMA Classification of Temagamite
Classification of Temagamite
2.BC.50
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
C : With Rh, Pd, Pt, etc.
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
C : With Rh, Pd, Pt, etc.
2.6.5.1
2 : SULFIDES
6 : AmBnXp, with (m+n):p = 4:3
2 : SULFIDES
6 : AmBnXp, with (m+n):p = 4:3
3.12.18
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
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 Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Tem | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Whitney & Evans (2010) | Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371 |
Physical Properties of Temagamite
Metallic
Transparency:
Opaque
Colour:
Bright white
Hardness:
2½ on Mohs scale
Hardness:
VHN25=92 kg/mm2 - Vickers
Density:
9.45 g/cm3 (Calculated)
Optical Data of Temagamite
Anisotropism:
In air weakly anisotropic. Under oil the anisotropism is enhanced with colours pale grey to dark grey.
Bireflectance:
none
Reflectivity:
| Wavelength | R1 (%) |
|---|---|
| 470nm | 51.8–52.8% |
| 546nm | 52.9–53.9% |
| 589nm | 54.2–55.0% |
| 650nm | 57.1–57.7% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 57.1–57.7%.
Colour in reflected light:
White with a gray tinge
Chemistry of Temagamite
Mindat Formula:
Pd3HgTe3
Element Weights:
Elements listed:
Common Impurities:
Pt,Bi
Crystallography of Temagamite
Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
P3m1
Cell Parameters:
a = 7.8211(6) Å, c = 17.281(1) Å
Ratio:
a:c = 1 : 2.21
Unit Cell V:
915.45 ų (Calculated from Unit Cell)
Z:
6
Comment:
on synthetic material
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.912 Å | (100) |
| 2.187 Å | (90) |
| 1.959 Å | (70) |
| 1.661 Å | (50) |
| 1.624 Å | (50) |
| 1.462 Å | (50) |
| 1.155 Å | (50) |
Comments:
Synthetic
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]) | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 37 : Layered igneous intrusions and related PGE minerals |
Type Occurrence of Temagamite
General Appearance of Type Material:
Inclusions in chalcopyrite up to 30 x 115 microns.
Place of Conservation of Type Material:
Royal Ontario Museum, Toronto, Ontario, Canada, M32528.
Geological Setting of Type Material:
Massive pyrite and chalcopyrite.
Associated Minerals at Type Locality:
Synonyms of Temagamite
Other Language Names for Temagamite
Relationship of Temagamite to other Species
Member of:
Other Members of Telargpalite Group:
| Sopcheite | Ag4Pd3Te4 | Orth. |
| Telargpalite | (Pd,Ag)3(Te,Bi) | Iso. |
Common Associates
Associations Based on Photo Data:
| 1 photo of Temagamite associated with Bornite | Cu5FeS4 |
| 1 photo of Temagamite associated with Kotulskite | Pd(Te,Bi)2-x (x ≈ 0.4) |
Related Minerals - Strunz-mindat Grouping
| 2.BC. | Panskyite | Pd9Ag2Pb2S4 |
| 2.BC. | Fleetite | Cu2RhIrSb2 |
| 2.BC. | Coldwellite | Pd3Ag2S |
| 2.BC. | 'UM2004-45-Se:AgHgPd' | (Ag,Cu)6Hg2Pd2Se3 |
| 2.BC.05 | 'UM2000-47-S:CuFePdPt' | PtPd(Fe,Cu)S |
| 2.BC.05 | Miassite | Rh17S15 |
| 2.BC.05 | Palladseite | Pd17Se15 |
| 2.BC.10 | Oosterboschite | (Pd,Cu)7Se5 |
| 2.BC.15 | Chrisstanleyite | Ag2Pd3Se4 |
| 2.BC.15 | Jagüéite | Cu2Pd3Se4 |
| 2.BC.20 | Keithconnite | Pd20Te7 |
| 2.BC.25 | Vasilite | (Pd,Cu)16(S,Te)7 |
| 2.BC.30 | Telluropalladinite | Pd9Te4 |
| 2.BC.35 | Kojonenite | Pd7-xSnTe2 (0.3 ≤ x ≤ 0.8) |
| 2.BC.35 | Luberoite | Pt5Se4 |
| 2.BC.37 | Kravtsovite | PdAg2S |
| 2.BC.40 | Oulankaite | (Pd,Pt)5(Cu,Fe)4SnTe2S2 |
| 2.BC.40 | Lukkulaisvaaraite | Pd14Ag2Te9 |
| 2.BC.42 | Monchetundraite | Pd2NiTe2 |
| 2.BC.45 | Telargpalite | (Pd,Ag)3(Te,Bi) |
| 2.BC.45 | Thalhammerite | Pd9Ag2Bi2S4 |
| 2.BC.47 | Vymazalováite | Pd3Bi2S2 |
| 2.BC.55 | Bowlesite | PtSnS |
| 2.BC.55 | Sopcheite | Ag4Pd3Te4 |
| 2.BC.60 | Laflammeite | Pd3Pb2S2 |
| 2.BC.65 | Tischendorfite | Pd8Hg3Se9 |
Other Information
Thermal Behaviour:
It decomposes at about 570°C to PdTe + Hg mercury vapor beginning to form below 500°C.
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 Temagamite
mindat.org URL:
https://www.mindat.org/min-3908.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Temagamite
Reference List:
Cabri, L. J., Laflamme, J. H. G., Stewart, J. M. (1973) Temagamite, a new palladium-mercury telluride from the Temagami copper deposit, Ontario, Canada. The Canadian Mineralogist, 12 (3) 193-198
Localities for Temagamite
Showing 46 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.
Australia | |
| HOATSON et al. (1992) |
Botswana | |
| Piestrzynski et al. (2015) |
Canada | |
| Garagan (2014) +2 other references |
| Nixon et al. (1998) |
| Olivo et al. (2002) +1 other reference |
| Péntek et al. (2013) |
| Econ Geol (1986) +2 other references |
| Cabri et al. (1973) |
| Ohnenstetter et al. (1989) |
| Beaudoin et al. (1990) |
| Smith (2021) |
| Smith (2021) | |
| Glencore plc |
| Seabrook et al. (2004) +1 other reference | |
| petrology +1 other reference |
Germany | |
| Tischendorf (1969) +1 other reference |
India | |
| Ndhlovu (2017) |
Norway | |
| Nilsson et al. (1998) |
| Grønlie (1988) |
| Geological Survey of Norway. The Ore ... | |
Pakistan | |
| Kausar (1998) |
Russia | |
| Sidorov et al. (2017, August) |
| Palyanova et al. (2023) |
| Palyanova et al. (2023) | |
| Cherkasova et al. (2014, August) |
| Groshev +6 other references |
| Groshev +6 other references | |
| Groshev +7 other references | |
| Stepanov et al. (2023) |
| Stepanov et al. (2023) |
| Gurskaya (2002) | |
| Kuzhuget et al. (2023) +1 other reference |
| Vikentyev et al. (2023) +1 other reference |
| Vikentyev et al. (2023) |
| Vikentyev et al. (2023) +1 other reference | |
Slovakia | |
| Radvanec et al. (2016) |
South Africa | |
| Anglo American plc |
| Manyeruke (2007) |
| www.minsoc.org.za (2005) |
| Theart et al. (2001) | |
Sweden | |
| IMA 18th General Meeting |
USA | |
| ... +3 other references |
| Volborth et al. (1986) +1 other reference |
| Gobla (2012) |
| ID by microprobe on polished section |
| Loucks (1976) +1 other reference |
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Salt Chuck Mine, Kasaan Peninsula, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USA