| |
 |
Ruarsite Mineral Data
|
|
|
General Ruarsite Information
|
 Chemical Formula: |
RuAsS |
| Composition: |
Molecular Weight = 208.06 gm |
| |
Arsenic 36.01 % As |
| |
Ruthenium 48.58 % Ru |
| |
Sulfur 15.41 % S |
| |
______ |
| |
100.00 % |
| Empirical Formula: |
RuAsS |
| Environment: |
Found in heavy mineral concentrates and in chromium ore derived from an Alpine-type ultramafic. |
| IMA Status: |
Approved IMA 1979 |
| Locality: |
Anduo, northern Tibet, China Link to MinDat.org Location Data. |
| Name Origin: |
Named for the composition, RUthenium, ARsenic, and Sulfur. |
| Name Pronunciation: |
Ruarsite  |
| Synonym: |
ICSD 42579 |
| |
PDF 27-568 |
| |
Ruarsite Image |
|
Images:
|
|
Ruarsite
Comments: BSE image showing LR: laurite, RURS: ruarsite, Ru-–ox: Ru oxide(?), Ru-Ni-As-S: unnamed Ru-Ni sulfarsenide. (CanMin, v31:331).
Location: Podiform chromitites of the Kraubath and Hochgrossen dunite-harzburgite massifs, Eastern Alps of Austria.
Scale: Scale Bar 10 µm.
© Canadian Mineralogist |
|
Ruarsite Crystallography
|
| Axial Ratios: |
a:b:c =1.0027:1:1.0148 |
| Cell Dimensions: |
a = 5.931, b = 5.915, c = 6.003, Z = 4; beta = 112.45° V = 194.64 Den(Calc)= 7.10 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/c |
| X Ray Diffraction: |
By Intensity(I/Io): 2.74(1), 2.77(1), 1.87(0.9), |
| |
Physical Properties of Ruarsite
|
| Cleavage: |
None |
| Color: |
Gray, Dark lead gray. |
| Diaphaneity: |
Opaque |
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
| Habit: |
Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks. |
| Hardness: |
6-7 - Orthoclase-Quartz |
| Luster: |
Metallic |
| Streak: |
grayish black |
| |
Optical Properties of Ruarsite
|
| RL Anisotrophism: |
Distinct, bluish gray to light reddish. |
| RL Color: |
Grayish white. |
| RL Pleochroism: |
Pale yellowish white to light grayish yellow-white. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Ruarsite in Air
| λ |
R |
 |
∑ R(λ) |
| 480 nm |
43.40 |
 |
|
| 546 nm |
44.10 |
 |
| 589 nm |
43.80 |
 |
| 656 nm |
45.10 |
 |
Calculated Relative Intensity Colors of Ruarsite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
| R |
|
|
|
|
|
|
|
|
|
|
| |
Calculated Properties of Ruarsite
|
| Electron Density: |
Bulk Density (Electron Density)=6.35 gm/cc
note: Specific Gravity of Ruarsite =7.10 gm/cc.
|
| Fermion Index: |
Fermion Index = 0.14
Boson Index = 0.86 |
| Photoelectric: |
PERuarsite = 124.48 barns/electron
U=PERuarsite x rElectron Density= 790.13 barns/cc.
|
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ruarsite is Not Radioactive |
| |
Ruarsite Classification
|
| Dana Class: |
02.12.04.04 (02)Sulfides - Including Selenides and Tellurides |
| |
(02.12)where Am Bn Xp, with (m+n):p=1:2 |
| |
(02.12.04)Arsenopyrite Group (Monoclinic: P21/c (Pseudo-orthorhombic)) |
| |
02.12.04.01 Arsenopyrite FeAsS P 21/c 2/m |
| |
02.12.04.02 Gudmundite FeSbS P 21/n 2/m |
| |
02.12.04.03 Osarsite (Os,Ru)AsS P 21/c 2/m |
| |
02.12.04.04 Ruarsite RuAsS P 21/c 2/m |
| |
02.12.04.05 Iridarsenite (Ir,Ru)As2 P 21/c 2/m |
| |
02.12.04.06 Clinosafflorite (Co,Fe,Ni)As2 P 21/n 2/m |
| Strunz Class: |
02.EB.20 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
| |
02.E - Metal Sulfides, M:S � 1:2 |
| |
02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc. |
| |
02.EB.20 Arsenopyrite FeAsS P 21/c 2/m |
| |
02.EB.20 Gudmundite FeSbS P 21/n 2/m |
| |
02.EB.20 Ruarsite RuAsS P 21/c 2/m |
| |
02.EB.20 Paxite CuAs2 P 21/c 2/m |
| |
02.EB.20 Osarsite (Os,Ru)AsS P 21/c 2/m |
| |
Other Ruarsite Information
|
| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Ruarsite :
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
Search for Ruarsite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Ruarsite :
Ask about Ruarsite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in
Español
Print or Cut-and-Paste your Ruarsite Specimen Label here :
|
Ruarsite
RuAsS
Dana No: 02.12.04.04 Strunz No: 02.EB.20
Locality:
Notes:
|
|
| |
| |
|
| |
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.