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Malanite
A valid IMA mineral species
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About Malanite
Formula:
Cu+(Ir3+Pt4+)S4
Originally given as CuPt3+2S4.
Colour:
Steel grey
Lustre:
Metallic
Hardness:
5
Specific Gravity:
7.46 (Calculated)
Crystal System:
Isometric
Member of:
Name:
For the type locality, the Malan River valley, near Zunhua, Chengde Prefecture, Hebei Province, China.
Thiospinel Group. Cuproiridsite-Malanite Series(?). The Ir analogue of ezochiite; the IrPt-analogue of shiranuiite.
Compare 'UM1981-17-S:CuIrPtRh'.
Compare 'UM1981-17-S:CuIrPtRh'.
Unique Identifiers
Mindat ID:
2551
Long-form identifier:
mindat:1:1:2551:1
Similar Names
| Malinite | A variety of | |
| Mamanite | A synonym of Polyhalite | |
| Melanite | A variety of Andradite | Ca3Fe23+(SiO4)3 |
| Melinite | A synonym of 'Bole' | |
| Melliniite | A valid IMA mineral species | (Ni,Fe)4P |
| Mellonite | A synonym of Pseudocotunnite | |
| Melnöite | A rock subtype | |
| Melonite | A valid IMA mineral species - grandfathered | NiTe2 |
| Mullanite | A synonym of Boulangerite | |
| Mylonite | A rock classification type |
IMA Classification of Malanite
Approved
IMA status notes:
Redefined by the IMA
IMA Formula:
Cu1+(Ir3+Pt4+)S2-4
Approval year:
1995
Approval history:
1995: Approved as a new species, as CuPt2S4 with Pt3+ (Yu 1996).
2018: Redefined as Cu1+(Ir3+Pt4+)S4 (Proposal 17-H) (Bosi et al., 2019).
2018: Redefined as Cu1+(Ir3+Pt4+)S4 (Proposal 17-H) (Bosi et al., 2019).
Classification of Malanite
2.DA.05
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
A : M:S = 3:4
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
A : M:S = 3:4
2.10.1.17
2 : SULFIDES
10 : AmBnXp, with (m+n):p = 3:4
2 : SULFIDES
10 : AmBnXp, with (m+n):p = 3:4
3.12.47
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.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Mla | 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 Malanite
Metallic
Transparency:
Opaque
Colour:
Steel grey
Streak:
Black
Hardness:
5 on Mohs scale
Hardness:
VHN20=445 - 479 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Imperfect/Fair
{111}, may be observed.
{111}, may be observed.
Density:
7.46(11) g/cm3 (Calculated)
Optical Data of Malanite
Type:
Isotropic
Colour in reflected light:
bright white with a faint brown to green tint
Chemistry of Malanite
Mindat Formula:
Cu+(Ir3+Pt4+)S4
Originally given as CuPt3+2S4.
Originally given as CuPt3+2S4.
Element Weights:
Elements listed:
Common Impurities:
Ni,Co,Fe,Pd
Crystallography of Malanite
Crystal System:
Isometric
Class (H-M):
m3m(4/m32/m) - Hexoctahedral
Cell Parameters:
a = 9.925(15) Å
Unit Cell V:
977.67 ų (Calculated from Unit Cell)
Z:
8
Comment:
Space Group: F d3m
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 1.75 Å | (10) |
| 2.48 Å | (8) |
| 1.90 Å | (8) |
| 0.783 Å | (8) |
| 1.011 Å | (7) |
| 2.98 Å | (6) |
| 5.70 Å | (5) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3b: Earth’s earliest hydrosphere | >4.45 |
| 12 : Hadean hydrothermal subsurface sulfide deposits (see also #33) | |
| Near-surface Processes | |
| 26 : Hadean detrital minerals | |
| 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 Malanite
Co-Type Localities:
General Appearance of Type Material:
Crystals are octahedral or dodecahedral, to 0.2 mm; massive
Place of Conservation of Type Material:
Geological Institute, Academy of Geological Sciences of China, Beijing, China
Geological Setting of Type Material:
peridotite-type platinum ores
Associated Minerals at Type Locality:
Synonyms of Malanite
Other Language Names for Malanite
Varieties of Malanite
Relationship of Malanite to other Species
Member of:
Other Members of Carrollite Subgroup:
| Berndlehmannite | Cu(CrV)S4 | Iso. m3m(4/m32/m) : Fd3m |
| Carrollite | CuCo2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Cuproiridsite | (Cu,Fe)Ir2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Cuprokalininite | Cu(Cr3+Cr4+)S4 | Iso. m3m(4/m32/m) : Fd3m |
| Ezochiite | Cu+(Rh3+Pt4+)S4 | Iso. m3m(4/m32/m) : Fd3m |
| Fletcherite | CuNi2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Florensovite | (Cu,Zn)Cr1.5Sb0.5S4 | Iso. m3m(4/m32/m) |
| Rhodostannite | Cu+(Fe2+0.5Sn4+1.5)S4 | Tet. 4/m : I41/a |
| Shiranuiite | Cu+(Rh3+Rh4+)S4 | Iso. m3m(4/m32/m) : Fd3m |
| Toyohaite | Ag+(Fe2+0.5Sn4+1.5)S4 | Tet. 4/m : I41/a |
| 'Unnamed (Fe3+-analogue of Fletcherite)' | Cu(Fe3+,Ni,Co)2S4 |
Forms a series with:
Common Associates
Associations Based on Photo Data:
| 2 photos of Malanite associated with Laurite | RuS2 |
| 2 photos of Malanite associated with Chromite | Fe2+Cr3+2O4 |
| 2 photos of Malanite associated with Sperrylite | PtAs2 |
| 1 photo of Malanite associated with Isoferroplatinum | Pt3Fe |
| 1 photo of Malanite associated with Cooperite | PtS |
Related Minerals - Strunz-mindat Grouping
| 2.DA. | Ferrodimolybdenite | FeMo2S4 |
| 2.DA. | Zaykovite | Rh3Se4 |
| 2.DA. | Ezochiite | Cu+(Rh3+Pt4+)S4 |
| 2.DA. | Grimmite | NiCo2S4 |
| 2.DA. | Zolenskyite | FeCr2S4 |
| 2.DA.05 | Shiranuiite | Cu+(Rh3+Rh4+)S4 |
| 2.DA.05 | Fletcherite | CuNi2S4 |
| 2.DA.05 | Florensovite | (Cu,Zn)Cr1.5Sb0.5S4 |
| 2.DA.05 | Siegenite | CoNi2S4 |
| 2.DA.05 | Cadmoindite | CdIn2S4 |
| 2.DA.05 | Kalininite | ZnCr2S4 |
| 2.DA.05 | Violarite | Fe2+Ni3+2S4 |
| 2.DA.05 | Nickeltyrrellite | CuNi2Se4 |
| 2.DA.05 | Linnaeite | Co2+Co3+2S4 |
| 2.DA.05 | Carrollite | CuCo2S4 |
| 2.DA.05 | Cuproiridsite | (Cu,Fe)Ir2S4 |
| 2.DA.05 | Cuprorhodsite | (Cu+0.5Fe3+0.5)Rh3+2S4 |
| 2.DA.05 | Berndlehmannite | Cu(CrV)S4 |
| 2.DA.05 | Polydymite | Ni2+Ni3+2S4 |
| 2.DA.05 | Trüstedtite | Ni3Se4 |
| 2.DA.05 | Daubréelite | Fe2+Cr3+2S4 |
| 2.DA.05 | Cuprokalininite | Cu(Cr3+Cr4+)S4 |
| 2.DA.05 | Greigite | Fe2+Fe3+2S4 |
| 2.DA.05 | Joegoldsteinite | MnCr2S4 |
| 2.DA.05 | Bornhardtite | Co2+Co3+2Se4 |
| 2.DA.05 | Tyrrellite | Cu(Co,Ni)2Se4 |
| 2.DA.05 | Indite | FeIn2S4 |
| 2.DA.05 | Xingzhongite | Pb2+Ir3+2S4 |
| 2.DA.10 | Rhodostannite | Cu+(Fe2+0.5Sn4+1.5)S4 |
| 2.DA.10 | Toyohaite | Ag+(Fe2+0.5Sn4+1.5)S4 |
| 2.DA.15 | Brezinaite | Cr3S4 |
| 2.DA.15 | Heideite | (Fe,Cr)1.15(Ti,Fe)2S4 |
| 2.DA.20 | Konderite | Cu3Pb(Rh,Pt,Ir)8S16 |
| 2.DA.20 | Inaglyite | Cu3Pb(Ir,Pt)8S16 |
| 2.DA.25 | Kingstonite | Rh3S4 |
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 Malanite
mindat.org URL:
https://www.mindat.org/min-2551.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Malanite
Reference List:
Fleischer, Michael, Pabst, Adolf, Mandarino, Joseph A., Chao, George Y., Cabri, Louis, J. (1976) New Mineral Names. American Mineralogist, 61 (1-2) 174-186
Fleischer, Michael, Cabri, Louis J., Pabst, Adolf (1980) New Mineral Names. American Mineralogist, 65 (3-4) 406-408
Zuxiang, Yu (1997) Malanite-A New Cupric Platinum (Pt3+) and Iridium (Ir3+) Sulphide. Acta Geologica Sinica - English Edition, 71 (2). p.152-157. doi:10.1111/j.1755-6724.1997.tb00355.x
Barkov, A. Y., Halkoaho, T. A. A., Laajoki, K. V. O., Alapieti, T. T., Peura, R. A. (1997) Ruthenian pyrite and nickeloan malanite from the Imandra layered complex, northwestern Russia. The Canadian Mineralogist, 35 (4) 887-897
Localities for Malanite
Showing 58 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.
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Sandao village, Fengning County, Chengde, Hebei, China