Mäkinenite
A valid IMA mineral species
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Formula:
NiSe
Previously γ-NiSe
Colour:
Yellow
Lustre:
Metallic
Hardness:
2½ - 3
Specific Gravity:
7.22 (Calculated)
Crystal System:
Trigonal
Name:
Named by Y. Vuorelainen, A. Huhma, and A. Häkli in 1964 in honor of Eero Mäkinen (27 April 1886, Sortavala, Finland - 27 October 1953, Helsinki, Finland), geologist and politician.
Type Locality:
Dimorph of:
This page provides mineralogical data about Mäkinenite.
Name Encoding
ASCII-7:
Makinenite
Unique Identifiers
Mindat ID:
2732
Long-form identifier:
mindat:1:1:2732:4
IMA Classification of Mäkinenite
Approved
Classification of Mäkinenite
2.CC.20
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.
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.
Dana 7th ed.:
2.8.16.1
2.8.16.2
2 : SULFIDES
8 : AmXp, with m:p = 1:1
2 : SULFIDES
8 : AmXp, with m:p = 1:1
3.11.14
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 IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Mkn | 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 Mäkinenite
Metallic
Transparency:
Opaque
Colour:
Yellow
Streak:
(not reported)
Hardness:
2½ - 3 on Mohs scale
Density:
7.22 g/cm3 (Calculated)
Optical Data of Mäkinenite
Anisotropism:
Strong, in oil pale green to pale orange-yellow, in air glowing cinder-red to blue-green or green
Reflectivity:
| Wavelength | R1 (%) | R2 (%) |
|---|---|---|
| 400nm | 24.0% | 25.0% |
| 420nm | 27.5% | 30.0% |
| 4400nm | 31.0% | 35.% |
| 460nm | 35.3% | 38.7% |
| 480nm | 39.4% | 41.6% |
| 500nm | 43.0% | 43.8% |
| 520nm | 46.0% | 45.8% |
| 540nm | 48.8% | 47.4% |
| 560nm | 51.1% | 48.6% |
| 580nm | 53.2% | 49.6% |
| 600nm | 54.9% | 50.5% |
| 620nm | 56.3% | 51.2% |
| 640nm | 57.4% | 51.9% |
| 660nm | 58.5% | 52.4% |
| 680nm | 59.4% | 52.9% |
| 700nm | 60.2% | 53.4% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 60.2%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Yellow-orange, pure yellow in oil.
Pleochroism:
Strong
Comments:
Yellow to greenish yellow.
Chemistry of Mäkinenite
Mindat Formula:
NiSe
Previously γ-NiSe
Previously γ-NiSe
Elements listed:
Crystallography of Mäkinenite
Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Cell Parameters:
a = 10.01 Å, c = 3.28 Å
Ratio:
a:c = 1 : 0.328
Unit Cell V:
284.62 ų (Calculated from Unit Cell)
Z:
9
Comment:
Space Group: n.d.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.88 Å | (very strong) |
| 2.63 Å | (very strong) |
| 2.35 Å | (very strong) |
| 1.95 Å | (very strong) |
| 4.99 Å | (moderate) |
| 1.81 Å | (moderately weak) |
| 1.71 Å | (moderately weak) |
| 1.665 Å | (moderately weak) |
| 1.64 Å | (moderately weak) |
| 1.035 Å | (moderately weak) |
Comments:
Kuusamo, Finland. Data from the type description.
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]) |
Type Occurrence of Mäkinenite
General Appearance of Type Material:
Massive.
Place of Conservation of Type Material:
National School of Mines, Paris, France.
Associated Minerals at Type Locality:
Other Language Names for Mäkinenite
Common Associates
Associations Based on Photo Data:
| 2 photos of Mäkinenite associated with Sederholmite | NiSe |
Related Minerals - Strunz-mindat Grouping
| 2.CC. | Eliopoulosite | V7S8 |
| 2.CC. | Tilkerodeite | Pd2HgSe3 |
| 2.CC. | 'UM2007-26-S:CuFeIrNiPtRh' | (Ir,Cu,Ni,Pt,Rh,Fe)9S11 |
| 2.CC. | Proxitwelvefoldite | Pd3Ni4Te8 |
| 2.CC. | Ferrotorryweiserite | Rh5Fe10S16 |
| 2.CC. | Tamuraite | Ir5Fe10S16 |
| 2.CC. | Crowningshieldite | (Ni0.9Fe0.1)S |
| 2.CC. | Kuvaevite | Ir5Ni10S16 |
| 2.CC. | Torryweiserite | Rh5Ni10S16 |
| 2.CC.05 | Achávalite | FeSe |
| 2.CC.05 | Langisite | CoAs |
| 2.CC.05 | Sederholmite | NiSe |
| 2.CC.05 | Freboldite | CoSe |
| 2.CC.05 | Nickeline | NiAs |
| 2.CC.05 | Sobolevskite | PdBi |
| 2.CC.05 | Jaipurite | CoS |
| 2.CC.05 | Kotulskite | Pd(Te,Bi)2-x (x ≈ 0.4) |
| 2.CC.05 | Zlatogorite | NiCuSb2 |
| 2.CC.05 | Stumpflite | PtSb |
| 2.CC.05 | Sudburyite | PdSb |
| 2.CC.05 | Breithauptite | NiSb |
| 2.CC.10 | Pyrrhotite | Fe1-xS |
| 2.CC.10 | Smythite | (Fe,Ni)3+xS4 (x=0-0.3) |
| 2.CC.10 | Troilite | FeS |
| 2.CC.15 | Ruthenarsenite | (Ru,Ni)As |
| 2.CC.15 | Westerveldite | (Fe,Ni,Co)As |
| 2.CC.15 | Modderite | CoAs |
| 2.CC.15 | Minakawaite | RhSb |
| 2.CC.15 | Cherepanovite | RhAs |
| 2.CC.20 | 'UM1990-38-S:CuFeIrNiPtRh' | (Ni,Fe,Rh,Cu,Ir,Pt)S |
| 2.CC.20 | Millerite | NiS |
| 2.CC.25 | Mackinawite | FeS |
| 2.CC.30 | Vavřínite | Ni2SbTe2 |
| 2.CC.30 | 'Hexatestibiopanickelite' | (Pd,Ni)(Sb,Te) ? |
| 2.CC.35b | Cooperite | PtS |
| 2.CC.35a | Vysotskite | PdS |
| 2.CC.35a | Braggite | PdPt3S4 |
| 2.CC.45 | Jacutingaite | Pt2HgSe3 |
| 2.CC.50 | 'Imgreite' | NiTe (?) |
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 Mäkinenite
mindat.org URL:
https://www.mindat.org/min-2732.html
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References for Mäkinenite
Localities for Mäkinenite
Showing 4 localities.
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.
Finland | |
| Vuorelainen et al. (1964) +1 other reference |
| Vuorelainen et al. (1964) |
Jordan | |
| Fleurance et al. (2013) |
Portugal | |
| Marques de Sá et al. (2010) |
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