| |
 |
Paracostibite Mineral Data
|
|
|
General Paracostibite Information
|
 Chemical Formula: |
CoSbS |
| Composition: |
Molecular Weight = 212.75 gm |
| |
Cobalt 27.70 % Co |
| |
Antimony 57.23 % Sb |
| |
Sulfur 15.07 % S |
| |
______ |
| |
100.00 % |
| Empirical Formula: |
CoSbS |
| Environment: |
Massive base-metal sulfide deposit in a carbonatized chlorite-anthophyllite schist that is most likely an altered mafic rock. |
| IMA Status: |
Approved IMA 1970 |
| Locality: |
Drill core from Trout Bay, Red Lake, Mulcahy Township, Kenora district, Ontario, Canada Link to MinDat.org Location Data. |
| Name Origin: |
Named for the chemical composition and probable structural relationship to pararammelsbergite. |
| Name Pronunciation: |
Paracostibite + Pronunciation  |
| Synonym: |
ICSD 40045 |
| |
IMA1969-023 |
| |
PDF 23-106 |
| |
Paracostibite Image |
|
Images:
|
|
Paracostibite
Comments: Photomicrograph showing four groups of paracostibite grains (white) associated with sphalerite (grey), and chalcopyrite (liglit grey). Dark areas are pits. (CanMin v 10:232).
Location: Drill-core from claims held by Cochenour Willans Gold Mines Ltd. in Mulcahy Township, District of Kenora, Red Lake Mining Division, Ontario, Canada.
Scale: See Image.
© Canadian Mineralogist |
|
Paracostibite Crystallography
|
| Axial Ratios: |
a:b:c =0.9684:1:1.9548 |
| Cell Dimensions: |
a = 5.764, b = 5.952, c = 11.635, Z = 8; V = 399.17 Den(Calc)= 7.08 |
| Crystal System: |
Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P bca |
| X Ray Diffraction: |
By Intensity(I/Io): 2.555(1), 2.035(0.8), 5.813(0.8), |
| |
Physical Properties of Paracostibite
|
| Color: |
Gray white, White. |
| Density: |
6.9 |
| Diaphaneity: |
Opaque |
| Habit: |
Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks. |
| Hardness: |
7 - Quartz |
| Luster: |
Metallic |
| |
Optical Properties of Paracostibite
|
| RL Anisotrophism: |
Weak, faint pink to pale buff. |
| RL Color: |
White with a faint grayish tinge. |
| RL Pleochroism: |
Weak. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Paracostibite in Air
| λ |
R1 |
R2 |
 |
∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
47.80 |
47.90 |
|
|
|
| 420 nm |
48.00 |
48.50 |
|
| 440 nm |
48.20 |
48.90 |
|
| 460 nm |
48.20 |
48.90 |
|
| 480 nm |
48.20 |
49.20 |
|
| 500 nm |
48.40 |
49.60 |
|
| 520 nm |
48.70 |
49.60 |
|
| 540 nm |
48.90 |
49.40 |
|
| 560 nm |
49.00 |
49.30 |
|
| 580 nm |
49.20 |
49.20 |
|
| 600 nm |
49.50 |
49.30 |
|
| 620 nm |
49.70 |
49.60 |
|
| 640 nm |
49.90 |
49.90 |
|
| 660 nm |
50.20 |
50.30 |
|
| 680 nm |
50.30 |
50.60 |
|
| 700 nm |
50.50 |
50.90 |
|
Calculated Relative Intensity Colors of Paracostibite in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
180% |
190% |
| R1 |
|
|
|
|
|
|
|
|
|
|
|
| R2 |
|
|
|
|
|
|
|
|
|
|
|
|
| |
Calculated Properties of Paracostibite
|
| Electron Density: |
Bulk Density (Electron Density)=6.26 gm/cc
note: Specific Gravity of Paracostibite =7.08 gm/cc.
|
| Fermion Index: |
Fermion Index = 0.0011304155
Boson Index = 0.9988695845 |
| Photoelectric: |
PEParacostibite = 201.52 barns/electron
U=PEParacostibite x rElectron Density=1,260.77 barns/cc.
|
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Paracostibite is Not Radioactive |
| |
Paracostibite Classification
|
| Dana Class: |
02.12.07.02 (02)Sulfides - Including Selenides and Tellurides |
| |
(02.12)where Am Bn Xp, with (m+n):p=1:2 |
| |
(02.12.07)Costibite Group (Orthorhombic Cobalt Arsenides or Antimonides) |
| |
02.12.07.01 Costibite CoSbS P mn21 mm2 |
| |
02.12.07.02 Paracostibite CoSbS P bca 2/m 2/m 2/m |
| |
02.12.07.03 Oenite! CoSbAs Unk Ortho |
| Strunz Class: |
02.EB.10e 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.10e Pararammelsbergite NiAs2 Pbma 2/m 2/m 2/m |
| |
02.EB.10e Paracostibite CoSbS P bca 2/m 2/m 2/m |
| |
Other Paracostibite Information
|
| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Paracostibite :
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
15 - WWW-MINCRYST
Search for Paracostibite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Paracostibite :
Ask about Paracostibite 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 Paracostibite Specimen Label here :
|
Paracostibite
CoSbS
Dana No: 02.12.07.02 Strunz No: 02.EB.10e
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.