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Skaergaardite Mineral Data
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General Skaergaardite Information
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 Chemical Formula: |
CuPd |
| Composition: |
Molecular Weight = 173.19 gm |
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Zinc 1.47 % Zn |
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Iron 3.87 % Fe |
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Copper 30.09 % Cu |
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Tin 1.10 % Sn |
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Tellurium 0.29 % Te |
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Palladium 59.42 % Pd |
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Platinum 1.13 % Pt |
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Lead 0.36 % Pb |
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Gold 2.27 % Au |
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______ |
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100.00 % |
| Empirical Formula: |
Pd0.96Au0.02Pt0.01Cu0.82Fe0+0.12Zn0.03Sn0.01Te0.004Pb0.003 |
| Environment: |
Minor sulfide phase associated with an ultrabasic, rhythmically layered gabbroic body. CsCl structure, isostructural with wairauite. |
| IMA Status: |
Approved IMA 2004 (Dana # Added) |
| Locality: |
Skaergaard intrusion, Kangerdlugssuaq area, East Greenland. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Synonym: |
IMA2003-049 |
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Skaergaardite Image |
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Images:
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Skaergaardite
Comments: (e) A euhedral crystal of skaergaardite exhibiting the form cube {100} (possibly distorted) included in a bornite-chalcocite i(BN+CC) grain. (f) bornite (BN)+ chalcopyrite (CP) microglobule with a skaergaardite cube with rounded edges. (MinMag 68:615).
Location: Drill core taken from the Skaergaard intrusion, Kangerdlugssuaq area, East Greenland.
Scale: See Image.
© Mineralogical Magazine |
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Skaergaardite Crystallography
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| Cell Dimensions: |
a = 3.0014, Z = 1; V = 27.04 Den(Calc)= 10.63 |
| Crystal System: |
Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: P m3m |
| X Ray Diffraction: |
By Intensity(I/Io): 0.8666(1)(222), 2.122(1)(110), 0.8021(0.7)(321),1.2254(0.5)(211), 0.9491(0.2)(310), 1.5(0.2)(200), |
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Physical Properties of Skaergaardite
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| Cleavage: |
None |
| Color: |
Steel gray, Bronze gray. |
| Diaphaneity: |
Opaque |
| Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
| Habit: |
Subhedral Crystals - Occurs as crystals which tend to exhibit a recognizable crystal shape. |
| Hardness: |
4-5 - Fluorite-Apatite |
| Luster: |
Metallic |
| Streak: |
black |
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Optical Properties of Skaergaardite
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| RL Anisotrophism: |
None. |
| RL Bireflectance: |
None. |
| RL Color: |
Creamy to bright white with no internal reflections. |
| RL Pleochroism: |
None. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Skaergaardite in Air
| λ |
R |
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∑ R(λ) |
| 400 nm |
55.10 |
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| 420 nm |
56.10 |
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| 440 nm |
56.90 |
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| 460 nm |
58.00 |
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| 470 nm |
58.70 |
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| 480 nm |
59.30 |
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| 500 nm |
60.20 |
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| 520 nm |
61.20 |
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| 540 nm |
62.40 |
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| 546 nm |
62.60 |
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| 560 nm |
63.00 |
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| 580 nm |
63.90 |
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| 589 nm |
64.10 |
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| 600 nm |
64.30 |
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| 620 nm |
64.90 |
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| 640 nm |
65.10 |
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| 650 nm |
65.30 |
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| 660 nm |
65.40 |
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| 680 nm |
65.70 |
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| 700 nm |
66.20 |
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Standardized Intensity (100%) Reflection Spectra of Skaergaardite in Oil
| λ |
R |
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∑ R(λ) |
| 400 nm |
43.80 |
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| 420 nm |
44.80 |
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| 440 nm |
45.70 |
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| 460 nm |
46.80 |
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| 470 nm |
47.40 |
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| 480 nm |
48.10 |
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| 500 nm |
49.00 |
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| 520 nm |
50.20 |
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| 540 nm |
50.90 |
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| 546 nm |
51.10 |
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| 560 nm |
51.70 |
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| 580 nm |
52.60 |
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| 589 nm |
52.80 |
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| 600 nm |
53.00 |
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| 620 nm |
53.40 |
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| 640 nm |
53.80 |
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| 650 nm |
53.95 |
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| 660 nm |
54.10 |
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| 680 nm |
54.60 |
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| 700 nm |
55.00 |
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Calculated Relative Intensity Colors of Skaergaardite in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
| R |
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Calculated Relative Intensity Colors of Skaergaardite in Oil
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
180% |
190% |
| R |
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Calculated Properties of Skaergaardite
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| Electron Density: |
Bulk Density (Electron Density)=9.35 gm/cc
note: Specific Gravity of Skaergaardite =10.6 gm/cc.
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| Fermion Index: |
Fermion Index = 0.14
Boson Index = 0.86 |
| Photoelectric: |
PESkaergaardite = 220.27 barns/electron
U=PESkaergaardite x rElectron Density=2,059.45 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Skaergaardite is Not Radioactive |
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Skaergaardite Classification
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| Dana Class: |
01.02.13.01 (01)Native Elements |
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(01.02)with platinum group metals and alloys |
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(01.02.13)CsCl structure (Pm3m) |
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01.02.13.01 Skaergaardite! CuPd P m3m 4/m 3 2/m |
| Strunz Class: |
01.AG.45 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides) |
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01.A - Metals and Intermetallic Alloys |
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01.AG -PGE-metal alloys |
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01.AG.45 Hongshiite* PtCu R 3m 3 2/m |
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01.AG.45 Skaergaardite! CuPd P m3m 4/m 3 2/m |
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Other Skaergaardite Information
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| References: |
NAME( MinMag 68:615) PHYS. PROP.(MinMag 68:615) OPTIC PROP.(MinMag 68:615) |
| See Also: |
Links to other databases for Skaergaardite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
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Skaergaardite
CuPd
Dana No: 01.02.13.01 Strunz No: 01.AG.45
Locality:
Notes:
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