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Ungavaite Mineral Data
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General Ungavaite Information
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 Chemical Formula: |
Pd4Sb3 |
| Composition: |
Molecular Weight = 790.08 gm |
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Iron 0.13 % Fe |
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Mercury 0.18 % Hg |
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Bismuth 0.42 % Bi |
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Antimony 44.52 % Sb |
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Tellurium 0.10 % Te |
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Arsenic 0.20 % As |
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Palladium 54.46 % Pd |
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______ |
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100.00 % |
| Empirical Formula: |
Pd4.04Sb2.88As0.02Fe2+0.01Bi0.01Hg0.007Te0.006 |
| Environment: |
Heavy-mineral concentrates derived from Ni-Cu-Co-PGE deposit drill-core rejects. Pd-dominant analogue of genkinite. |
| IMA Status: |
Approved IMA 2004 (Dana # Added) |
| Locality: |
Mesamax Northwest deposit, Ungava region, Quebec, Canada Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Synonym: |
IMA2004-020 |
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Ungavaite Crystallography
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| Axial Ratios: |
a:c = 1:3.11999 |
| Cell Dimensions: |
a = 7.7388, c = 24.145, Z = 8; V = 1,446.02 Den(Calc)= 7.26 |
| Crystal System: |
Tetragonal - Trapezohedral H-M Symbol (4 2 2) Space Group: P 41212, P 4122, P 43212 |
| X Ray Diffraction: |
By Intensity(I/Io): 2.2633(1), 3.0077(0.9), 1.9404(0.6),0.9221(0.3), 1.2002(0.3), 1.2465(0.3), 2.1471(0.3), |
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Physical Properties of Ungavaite
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| Cleavage: |
None |
| Color: |
Dark gray. |
| Diaphaneity: |
Opaque |
| Fracture: |
Malleable - Deforms rather than breaking apart with a hammer. |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Luster: |
Metallic |
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Optical Properties of Ungavaite
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| RL Anisotrophism: |
Weak with pale blue-gray to deep blue rotation tints. |
| RL Bireflectance: |
Weak. |
| RL Color: |
Bright creamy white with no internal reflections. |
| RL Pleochroism: |
None. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Ungavaite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 470 nm |
50.20 |
50.50 |
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| 546 nm |
55.60 |
55.90 |
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| 589 nm |
57.90 |
58.30 |
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| 650 nm |
60.20 |
60.70 |
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Calculated Relative Intensity Colors of Ungavaite in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
180% |
| R1 |
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| R2 |
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Calculated Properties of Ungavaite
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| Electron Density: |
Bulk Density (Electron Density)=6.19 gm/cc
note: Specific Gravity of Ungavaite =7.26 gm/cc.
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| Fermion Index: |
Fermion Index = 0.12
Boson Index = 0.88 |
| Photoelectric: |
PEUngavaite = 298.75 barns/electron
U=PEUngavaite x rElectron Density=1,848.46 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ungavaite is Not Radioactive |
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Ungavaite Classification
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| Dana Class: |
02.06.04.03 (02)Sulfides - Including Selenides and Tellurides |
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(02.06)where Am Bn Xp, with (m+n):p=4:3 |
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(02.06.04)Genkinite Group |
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02.06.04.01 Genkinite (Pt,Pd)4Sb3 P 41212 4 2 2 |
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02.06.04.02 Oulankaite! (Pd,Pt)5(Cu,Fe)4SnTe2S2 Tetra |
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02.06.04.03 Ungavaite! Pd4Sb3 P 41212, P 4122, P 43212 4 2 2
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| Strunz Class: |
02.AC.35b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.A - Simple Sulfides, Selenides, etc |
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02.AC -Alloys of metalloids with PGE |
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02.AC.35b Ungavaite! Pd4Sb3 P 41212, P 4122, P 43212 4 2 2 |
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Other Ungavaite Information
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| References: |
NAME( AmMin, v91, p1207) PHYS. PROP.(AmMin, v91, p1207) OPTIC PROP.(AmMin, v91, p1207) |
| See Also: |
Links to other databases for Ungavaite :
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 Ungavaite Specimen Label here :
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Ungavaite
Pd4Sb3
Dana No: 02.06.04.03 Strunz No: 02.AC.35b
Locality:
Notes:
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