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Merenskyite Mineral Data
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General Merenskyite Information
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 Chemical Formula: |
(Pd,Pt)(Te,Bi)2 |
| Composition: |
Molecular Weight = 386.76 gm |
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Bismuth 10.81 % Bi |
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Tellurium 59.39 % Te |
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Palladium 24.76 % Pd |
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Platinum 5.04 % Pt |
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______ |
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100.00 % |
| Empirical Formula: |
Pd0.9Pt0.1Te1.8Bi0.2 |
| Environment: |
In disseminated interstitial seggregations of Cu-Fe-Ni sulfides with other platinum group minerals. |
| IMA Status: |
Approved IMA 1966 |
| Locality: |
Rustenburg mine, Merensky Reef, western Bushveld Complex, South Africa. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Hans Merensky (1871-1952), who was intrumental in the discovery of the "Reef" also named for him. |
| Name Pronunciation: |
Merenskyite + Pronunciation  |
| Synonym: |
ICSD 83642 |
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PDF 29-970 |
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Merenskyite Image |
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Images:
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Borovskite Temagamite Merenskyite
Comments: Borovskite (Bvk) - temagamite (Tmg) - merenskyite (Mrk) composite grain included in chalcopyrite (Ccp). (CanMin, v 42, p 674).
Location: McBratney high-grade PGE-Au occurrence, Bear Lake mafic unit, Proterozoic Flin Flon greenstone belt, Manitoba, Canada.
Scale: See Image.
© Canadian Mineralogist |
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Merenskyite Crystallography
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| Axial Ratios: |
a:c = 1:1.28833 |
| Cell Dimensions: |
a = 3.978, c = 5.125, Z = 1; V = 70.24 Den(Calc)= 9.14 |
| Crystal System: |
Trigonal - Ditrigonal Pyramidal H-M Symbol (3m) Space Group: P 3m1 |
| X Ray Diffraction: |
By Intensity(I/Io): 2.92(1), 2.1(0.6), 3.07(0.3), |
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Physical Properties of Merenskyite
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| Color: |
White, Grayish white. |
| Diaphaneity: |
Opaque |
| Habit: |
Inclusions - Generally found as inclusions in other minerals. |
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Hardness: |
2-3 - Gypsum-Calcite |
| Luster: |
Metallic |
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Optical Properties of Merenskyite
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| RL Anisotrophism: |
Distinct to strong, from dark brown to light greenish gray. |
| RL Color: |
White. |
| RL Pleochroism: |
Weak, white to grayish white in air, more distinct in oil, from white to slightly creamy. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Merenskyite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
58.20 |
59.10 |
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| 420 nm |
59.40 |
60.40 |
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| 440 nm |
60.60 |
61.70 |
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| 460 nm |
61.80 |
63.00 |
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| 480 nm |
63.30 |
64.40 |
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| 500 nm |
64.50 |
65.80 |
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| 520 nm |
65.60 |
67.20 |
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| 540 nm |
66.60 |
68.20 |
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| 560 nm |
67.40 |
68.90 |
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| 580 nm |
68.10 |
69.40 |
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| 600 nm |
68.50 |
69.70 |
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| 620 nm |
69.00 |
70.30 |
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| 640 nm |
69.40 |
70.80 |
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| 660 nm |
69.70 |
71.20 |
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| 680 nm |
69.60 |
71.40 |
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| 700 nm |
69.30 |
71.20 |
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Calculated Relative Intensity Colors of Merenskyite in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
150% |
| R1 |
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| R2 |
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Calculated Properties of Merenskyite
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| Electron Density: |
Bulk Density (Electron Density)=7.53 gm/cc
note: Specific Gravity of Merenskyite =9.14 gm/cc.
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| Fermion Index: |
Fermion Index = 0.11
Boson Index = 0.89 |
| Photoelectric: |
PEMerenskyite = 574.08 barns/electron
U=PEMerenskyite x rElectron Density=4,325.07 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Merenskyite is Not Radioactive |
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Merenskyite Classification
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| Dana Class: |
02.12.14.04 (02)Sulfides - Including Selenides and Tellurides |
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(02.12)where Am Bn Xp, with (m+n):p=1:2 |
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(02.12.14)Melonite Group (Trigonal: P-3m1) AX2 type |
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02.12.14.01 Melonite NiTe2 P 3m1 3 2/m |
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02.12.14.02 Kitkaite NiTeSe P 3m1 3 2/m |
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02.12.14.03 Moncheite (Pt,Pd)(Te,Bi)2 P 3m1 3 2/m |
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02.12.14.04 Merenskyite (Pd,Pt)(Te,Bi)2 P 3m1 3m |
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02.12.14.05 Berndtite SnS2 P 3m1 3 2/m |
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02.12.14.06 Shuangfengite IrTe2 P 3m1 3 2/m |
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02.12.14.07 Sudovikovite! PtSe2 P 3m1 3 2/m |
| Strunz Class: |
02.EA.20 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.E - Metal Sulfides, M:S � 1:2 |
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02.EA -M:S = 1:2 |
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02.EA.20 Berndtite SnS2 P 3m1 3 2/m |
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02.EA.20 Merenskyite (Pd,Pt)(Te,Bi)2 P 3m1 3m |
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02.EA.20 Melonite NiTe2 P 3m1 3 2/m |
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02.EA.20 Kitkaite NiTeSe P 3m1 3 2/m |
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02.EA.20 Moncheite (Pt,Pd)(Te,Bi)2 P 3m1 3 2/m |
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02.EA.20 Sudovikovite! PtSe2 P 3m1 3 2/m |
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02.EA.20 Shuangfengite IrTe2 P 3m1 3 2/m |
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Other Merenskyite Information
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| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(AntBidBlaNic1) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Merenskyite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST
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Merenskyite
(Pd,Pt)(Te,Bi)2
Dana No: 02.12.14.04 Strunz No: 02.EA.20
Locality:
Notes:
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