Skaergaardite Mineral Data (original) (raw)
General Skaergaardite Information
Chemical Formula:
CuPd
Composition:
Molecular Weight = 173.19 gm
Zinc 1.47 % Zn
Iron 3.87 % Fe
Copper 30.09 % Cu
Tin 1.10 % Sn
Tellurium 0.29 % Te
Palladium 59.42 % Pd
Platinum 1.13 % Pt
Lead 0.36 % Pb
Gold 2.27 % Au
______
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
Skaergaardite Image
Images:
 |
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 |
|---|
Skaergaardite Crystallography
Cell Dimensions:
a = 3.0014, Z = 1; V = 27.04 Den(Calc)= 10.63
Crystal System:
Isometric - HexoctahedralH-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),
Crystal Structure:
Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above
| | Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York, Note: CsCl structure, cesium chloride structure | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
Physical Properties of Skaergaardite
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
Optical Properties of Skaergaardite
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 |  |
∑ R(λ) |
|---|---|---|---|
| 400 nm | 55.10 |  |
|
| 420 nm | 56.10 |  |
|
| 440 nm | 56.90 |  |
|
| 460 nm | 58.00 |  |
|
| 470 nm | 58.70 |  |
|
| 480 nm | 59.30 |  |
|
| 500 nm | 60.20 |  |
|
| 520 nm | 61.20 |  |
|
| 540 nm | 62.40 |  |
|
| 546 nm | 62.60 |  |
|
| 560 nm | 63.00 |  |
|
| 580 nm | 63.90 |  |
|
| 589 nm | 64.10 |  |
|
| 600 nm | 64.30 |  |
|
| 620 nm | 64.90 |  |
|
| 640 nm | 65.10 |  |
|
| 650 nm | 65.30 |  |
|
| 660 nm | 65.40 |  |
|
| 680 nm | 65.70 |  |
|
| 700 nm | 66.20 |  |
Standardized Intensity (100%) Reflection Spectra of Skaergaardite in Oil
| λ | R | |
∑ R(λ) |
|---|---|---|---|
| 400 nm | 43.80 | |
|
| 420 nm | 44.80 | |
|
| 440 nm | 45.70 | |
|
| 460 nm | 46.80 | |
|
| 470 nm | 47.40 | |
|
| 480 nm | 48.10 | |
|
| 500 nm | 49.00 | |
|
| 520 nm | 50.20 | |
|
| 540 nm | 50.90 | |
|
| 546 nm | 51.10 | |
|
| 560 nm | 51.70 | |
|
| 580 nm | 52.60 | |
|
| 589 nm | 52.80 | |
|
| 600 nm | 53.00 | |
|
| 620 nm | 53.40 | |
|
| 640 nm | 53.80 | |
|
| 650 nm | 53.95 | |
|
| 660 nm | 54.10 | |
|
| 680 nm | 54.60 | |
|
| 700 nm | 55.00 | |
Calculated Relative Intensity Colors of Skaergaardite in Air
| RelativeIntensity | 0% | 20% | 40% | 60% | 80% | 100% | 120% | 140% | 160% |
|---|---|---|---|---|---|---|---|---|---|
| R |
Calculated Relative Intensity Colors of Skaergaardite in Oil
| RelativeIntensity | 0% | 20% | 40% | 60% | 80% | 100% | 120% | 140% | 160% | 180% | 190% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| R |
Calculated Properties of Skaergaardite
Electron Density:
Bulk Density (Electron Density)=9.35 gm/cc
note: Specific Gravity of Skaergaardite =10.6 gm/cc.
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.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Skaergaardite is Not Radioactive
Skaergaardite Classification
Dana Class:
01.02.13.01 (01)Native Elements
(01.02)with platinum group metals and alloys
(01.02.13)CsCl structure (Pm3m)
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)
01.A - Metals and Intermetallic Alloys
01.AG -PGE-metal alloys
01.AG.45 Hongshiite* PtCu R 3m 3 2/m
01.AG.45 Skaergaardite! CuPd P m3m 4/m 3 2/m
Other Skaergaardite Information
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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Print or Cut-and-Paste your Skaergaardite Specimen Label here :
Skaergaardite
CuPd
Dana No: 01.02.13.01 Strunz No: 01.AG.45
Locality:
Notes: