Shandite
A valid IMA mineral species - grandfathered
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About Shandite
Formula:
Ni3Pb2S2
Colour:
Brass-yellow
Lustre:
Metallic
Hardness:
4
Specific Gravity:
8.72
Crystal System:
Trigonal
Name:
Named by Paul Ramdohr in 1950 for petrologist, Samuel James Shand [October 29, 1882 Edinburgh, Scotland - April 11, 1957 Boughty Ferry, near Dundee, Scotland], professor at University of Stellenbosch, South Africa, later chair of petrography at Columbia University, New York.
Unique Identifiers
Mindat ID:
3631
Long-form identifier:
mindat:1:1:3631:9
GUID
(UUID V4):
(UUID V4):
268824b0-b592-4faf-823c-9e4ea208367c
IMA Classification of Shandite
Approved, 'Grandfathered' (first described prior to 1959)
First published:
1950
Classification of Shandite
2.BE.15
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
E : With Pb (Bi)
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
E : With Pb (Bi)
2.3.5.1
2 : SULFIDES
3 : AmBnXp, with (m+n):p = 5:2
2 : SULFIDES
3 : AmBnXp, with (m+n):p = 5:2
3.11.6
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
11 : Sulphides etc. of Ni
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
11 : Sulphides etc. of Ni
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Snd | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Shandite
Metallic
Transparency:
Opaque
Colour:
Brass-yellow
Hardness:
4 on Mohs scale
Cleavage:
Distinct/Good
Rhombohedral.
Rhombohedral.
Density:
8.72 g/cm3 (Measured) 8.87 g/cm3 (Calculated)
Optical Data of Shandite
Anisotropism:
Strong; gray-blue and yellow-brown
Colour in reflected light:
Cream-white
Pleochroism:
Strong
Chemistry of Shandite
Mindat Formula:
Ni3Pb2S2
Elements listed:
Common Impurities:
Zn,Fe,Co,Mn
Crystallography of Shandite
Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Setting:
R3m
Cell Parameters:
a = 5.591(1) Å, c = 13.579(1) Å
Ratio:
a:c = 1 : 2.429
Unit Cell V:
367.60 Ă
Âł (Calculated from Unit Cell)
Z:
3
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) |
---|---|---|---|---|---|---|---|
0000051 | Shandite | Peacock M A, McAndrew J (1950) On parkerite and shandite and the crystal structure of Ni3Pb2S2 American Mineralogist 35 425-439 | 1950 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.794 Ă | (100) |
2.779 Ă | (98) |
1.971 Ă | (86) |
3.943 Ă | (84) |
2.281 Ă | (81) |
1.610 Ă | (42) |
1.759 Ă | (31) |
Comments:
Synthetic
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-đ alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Shandite
Associated Minerals at Type Locality:
Reference:
Ramdohr, P. (1950) Ăber das Vorkommen von Heazlewoodit Ni3S2 und ĂŒber ein neues ihn begleitendes Mineral: Shandit Ni3Pb2S2. Sitzungsberichte der Deutchen Akademie der Wissenschaften zu Berlin: 6: 1-29.
Other Language Names for Shandite
Common Associates
Associated Minerals Based on Photo Data:
3 photos of Shandite associated with Heazlewoodite | Ni3S2 |
1 photo of Shandite associated with Sphalerite | ZnS |
1 photo of Shandite associated with Pentlandite | (NixFey)ÎŁ9S8 |
1 photo of Shandite associated with Lizardite | Mg3(Si2O5)(OH)4 |
Related Minerals - Strunz-mindat Grouping
2.BE. | Zipserite | Bi5S4 |
2.BE.05 | Betekhtinite | Pb2(Cu,Fe)22-24S15 |
2.BE.10 | Furutobeite | (Cu,Ag)6PbS4 |
2.BE.15 | Rhodplumsite | Rh3Pb2S2 |
2.BE.20 | Parkerite | Ni3(Bi,Pb)2S2 |
2.BE.25 | Schlemaite | (Cu,â»)6(Pb,Bi)Se4 |
2.BE.30 | PaĆĄavaite | Pd3Pb2Te2 |
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 Shandite
mindat.org URL:
https://www.mindat.org/min-3631.html
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References for Shandite
Reference List:
Peacock, M. A., McAndrew, John (1950) On parkerite and shandite and the crystal structure of Ni3Pb2S2. American Mineralogist, 35 (5-6) 425-439
Brower, W. S., Parker, H. S., Roth, and R. S. (1974) Reexamination of synthetic parkerite and shandite. American Mineralogist, 59 (3-4) 296-301
Dymek, R. F. (1987) Shandite, Ni3Pb2S2, in a serpentinized metadunite from the Isua supracrustal belt, West Greenland. The Canadian Mineralogist, 25 (2) 25-249
Localities for Shandite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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.
Australia | |
| Bottrill et al. (2008) |
| Bottrill et al. (2008) |
| Nickel +2 other references |
Austria | |
| Kolitsch et al. (2010) |
Canada | |
| HorvĂĄth et al. (2013) |
Czech Republic | |
| Sejkora et al. (2020) |
France | |
| Y. Moëlo : "Compte-rendu de la ... +1 other reference |
Greece | |
| Bussolesi et al. (2020) |
Greenland | |
| Ulff-MĂžller (1989) +1 other reference |
Ulff-MĂžller (1985) | |
| Dymek (1987) +1 other reference |
Italy | |
| AA. VV. |
| Boscardin et al. (2013) |
Japan | |
| JOURNAL OF MINERALOGY (1998) |
Russia | |
| Mekhonoshin et al. (2013) +2 other references |
| Sidorov et al. (2009) +2 other references |
| Kravtsova et al. (2002) |
Spain | |
| Econ Geol (1990) |
Switzerland | |
| Peretti (1986) +3 other references |
Peretti (1986) +3 other references | |
Peretti (1986) +3 other references | |
USA | |
| Smith and Barnes (2011) |
| Smith and Barnes (2011) +1 other reference |
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Jeffrey Mine, Val-des-Sources, Les Sources RCM, Estrie, Québec, Canada