Miessiite Mineral Data (original) (raw)
General Miessiite Information
Chemical Formula:
Pd11Te2Se2
Composition:
Molecular Weight = 1,589.46 gm
Tellurium 16.78 % Te
Palladium 73.78 % Pd
Selenium 9.44 % Se
______
100.00 %
Empirical Formula:
Pd11.02Te2.09Se1.9
Environment:
Discovered along with placer gold and PGM nuggets. Isomertieite group.
IMA Status:
Approved IMA 2006 (Dana # Added)
Locality:
Miessi (in Saami language, Miessijohka) River placers, Lemmenjoki area, Inari commune, Lapland, Finland. Link to MinDat.org Location Data.
Name Origin:
Named for the locality.
Synonym:
IMA2006-013
Miessiite Image
Images:
 |
Miessiite Comments: B&W optical image of miessiite grain. (CanMin, v45:1221). Location: Miessi River placers, Lemmenjoki area, Inari commune, Lapland, Finland..Scale: See Image. © Canadian Mineralogist |
|---|
Miessiite Crystallography
Cell Dimensions:
a = 12.448, Z = 8; V = 1,928.85 Den(Calc)= 10.95
Crystal System:
Isometric - DiploidalH-M Symbol (2/m 3) Space Group: F d3m
X Ray Diffraction:
By Intensity(I/Io): 2.197(1), 2.395(0.8), 1.271(0.3),1.305(0.25), 1.555(0.25), 1.875(0.25), 2.072(0.2), 2.543(0.2),
Physical Properties of Miessiite
Color:
Black, Silvery gray.
Diaphaneity:
Opaque
Fracture:
Malleable - Deforms rather than breaking apart with a hammer.
Habit:
Nuggets - Irregular lumps produced by stream transport of malleable metals.
Hardness:
2-2.5 - Gypsum-Finger Nail
Luster:
Metallic
Streak:
black
Optical Properties of Miessiite
RL Anisotrophism:
None.
RL Bireflectance:
None.
RL Color:
Light gray in air, pinkish gray in oil.
RL Pleochroism:
None.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Miessiite in Air
| λ | R |  |
∑ R(λ) |
|---|---|---|---|
| 400 nm | 44.30 |  |
|
| 420 nm | 45.65 |  |
|
| 440 nm | 47.60 |  |
|
| 460 nm | 48.65 |  |
|
| 470 nm | 48.90 |  |
|
| 480 nm | 49.10 |  |
|
| 500 nm | 49.60 |  |
|
| 520 nm | 50.30 |  |
|
| 540 nm | 51.40 |  |
|
| 546 nm | 51.60 |  |
|
| 560 nm | 52.20 |  |
|
| 580 nm | 53.30 |  |
|
| 589 nm | 53.90 |  |
|
| 600 nm | 54.60 |  |
|
| 620 nm | 55.70 |  |
|
| 640 nm | 56.50 |  |
|
| 650 nm | 56.80 |  |
|
| 660 nm | 57.10 |  |
|
| 680 nm | 57.55 |  |
|
| 700 nm | 58.30 |  |
Standardized Intensity (100%) Reflection Spectra of Miessiite in Oil
| λ | R | |
∑ R(λ) |
|---|---|---|---|
| 400 nm | 22.60 | |
|
| 420 nm | 23.60 | |
|
| 440 nm | 26.50 | |
|
| 460 nm | 28.70 | |
|
| 470 nm | 29.50 | |
|
| 480 nm | 30.20 | |
|
| 500 nm | 30.80 | |
|
| 520 nm | 30.50 | |
|
| 540 nm | 31.20 | |
|
| 546 nm | 31.60 | |
|
| 560 nm | 32.45 | |
|
| 580 nm | 33.20 | |
|
| 589 nm | 33.70 | |
|
| 600 nm | 34.35 | |
|
| 620 nm | 35.10 | |
|
| 640 nm | 36.10 | |
|
| 650 nm | 36.65 | |
|
| 660 nm | 37.20 | |
|
| 680 nm | 37.80 | |
|
| 700 nm | 38.40 | |
Calculated Relative Intensity Colors of Miessiite in Air
| RelativeIntensity | 0% | 20% | 40% | 60% | 80% | 100% | 120% | 140% | 160% | 180% | 190% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| R |
Calculated Relative Intensity Colors of Miessiite in Oil
| RelativeIntensity | 0% | 40% | 80% | 100% | 120% | 160% | 200% | 240% | 280% | 320% |
|---|---|---|---|---|---|---|---|---|---|---|
| R |
Calculated Properties of Miessiite
Electron Density:
Bulk Density (Electron Density)=9.37 gm/cc
note: Specific Gravity of Miessiite =11.0 gm/cc.
Fermion Index:
Fermion Index = 0.18
Boson Index = 0.82
Photoelectric:
PEMiessiite = 248.24 barns/electron
U=PEMiessiite x rElectron Density=2,326.52 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Miessiite is Not Radioactive
Miessiite Classification
Dana Class:
02.16.02.02 (02)Sulfides - Including Selenides and Tellurides
(02.16)with miscellaneous formulae
(02.16.02)Dana Group
02.16.02.01 Isomertieite Pd11Sb2As2 F d3m 4/m 3 2/m
02.16.02.02 Miessiite! Pd11Te2Se2 F d3m 2/m 3
Strunz Class:
02.AC.15a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
02.A - Simple Sulfides, Selenides, etc
02.AC -Alloys of metalloids with PGE
02.AC.15a Isomertieite Pd11Sb2As2 F d3m 4/m 3 2/m
02.AC.15a Miessiite! Pd11Te2Se2 F d3m 2/m 3
Other Miessiite Information
References:
NAME( CanMin, v45:1221) PHYS. PROP.(CanMin, v45:1221) OPTIC PROP.(CanMin, v45:1221)
See Also:
Links to other databases for Miessiite :
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 Miessiite Specimen Label here :
Miessiite
Pd11Te2Se2
Dana No: 02.16.02.02 Strunz No: 02.AC.15a
Locality:
Notes: