| |
 |
Sugakiite Mineral Data
|
|
|
General Sugakiite Information
|
 Chemical Formula: |
Cu(Fe,Ni)8S8 |
| Composition: |
Molecular Weight = 772.05 gm |
| |
Iron 43.47 % Fe |
| |
Cobalt 0.15 % Co |
| |
Copper 7.00 % Cu |
| |
Nickel 16.19 % Ni |
| |
Sulfur 33.19 % S |
| |
______ |
| |
100.00 % |
| Empirical Formula: |
Cu0.85Fe2+6.01Ni2.13Co0.02S7.99 |
| Environment: |
Found in the interstices among grains of olivine.in peridotite. Pentlandite group. |
| IMA Status: |
Approved IMA 2005 (Dana # Added) |
| Locality: |
Horoman, Samani-cho, Urakawa-gun, Japan. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Asahiko Sugaki (b. 1923) of Tohoku University, Sendai, Japan. |
| Synonym: |
IMA2005-033 |
| |
Sugakiite Image |
|
Images:
|
|
Sugakiite
Comments: Reflected light polished section of sugakiite (sg) associated with bornite (bn), talnakhite (td) and native copper (Cu). (CanMin, v43:266).
Location: Horoman, Samani-cho, Urakawa-gun, Japan.
Scale: See Image.
© Canadian Mineralogist |
|
Sugakiite Crystallography
|
| Axial Ratios: |
a:c = 1:0.92267 |
| Cell Dimensions: |
a = 10.566, c = 9.749, Z = 4; V = 1,088.38 Den(Calc)= 4.71 |
| Crystal System: |
Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 41/mnm |
| X Ray Diffraction: |
By Intensity(I/Io): 2.072(1)(510), 1.793(0.85)(404), 1.804(0.83)(215),3.061(0.74)(103), 1.954(0.42)(005), 1.962(0.38)(520), 2.641(0.33)(400), 2.975(0.32)(113), 2.93(0.3)(320), |
| |
Physical Properties of Sugakiite
|
| Cleavage: |
None |
| Color: |
Reddish yellow. |
| Diaphaneity: |
Opaque |
| Fracture: |
Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments. |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Hardness: |
2-3 - Gypsum-Calcite |
| Luster: |
Metallic |
| |
Optical Properties of Sugakiite
|
| RL Anisotrophism: |
Weak dark gray to faint light gray. |
| RL Color: |
Creamy white with a reddish tint. |
| RL Pleochroism: |
None. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Sugakiite in Air
| λ |
R1 |
R2 |
 |
∑ R1(λ) |
∑ R2(λ) |
| 435 nm |
31.90 |
31.90 |
|
|
|
| 495 nm |
36.10 |
36.10 |
|
| 545 nm |
39.10 |
39.10 |
|
| 586 nm |
41.50 |
41.50 |
|
| 649 nm |
44.30 |
44.30 |
|
Calculated Relative Intensity Colors of Sugakiite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
240% |
260% |
| R1 |
|
|
|
|
|
|
|
|
|
|
|
| R2 |
|
|
|
|
|
|
|
|
|
|
|
|
| |
Calculated Properties of Sugakiite
|
| Electron Density: |
Bulk Density (Electron Density)=4.50 gm/cc
note: Specific Gravity of Sugakiite =4.71 gm/cc.
|
| Fermion Index: |
Fermion Index = 0.01
Boson Index = 0.99 |
| Photoelectric: |
PESugakiite = 24.69 barns/electron
U=PESugakiite x rElectron Density= 111.15 barns/cc.
|
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sugakiite is Not Radioactive |
| |
Sugakiite Classification
|
| Dana Class: |
02.07.02.02 (02)Sulfides - Including Selenides and Tellurides |
| |
(02.07)where Am Bn Xp, with (m+n):p=9:8 |
| |
(02.07.02)Dana Group |
| |
02.07.02.01 Mackinawite (Fe,Ni)S0.9 P 4/nmm 4/m 2/m 2/m |
| |
02.07.02.02 Sugakiite! Cu(Fe,Ni)8S8 P 41/mnm 4/m 2/m 2/m |
| Strunz Class: |
02.BB.15c 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
| |
02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1) |
| |
02.BB -With Ni, Fe |
| |
02.BB.15c Sugakiite! Cu(Fe,Ni)8S8 P 41/mnm 4/m 2/m 2/m |
| |
Other Sugakiite Information
|
| References: |
NAME( AmMin, v93:1944) PHYS. PROP.(AmMin, v93:1944) OPTIC PROP.(AmMin, v93:1944) |
| See Also: |
Links to other databases for Sugakiite :
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
Search for Sugakiite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Sugakiite :
Ask about Sugakiite 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
Espaņol
Print or Cut-and-Paste your Sugakiite Specimen Label here :
|
Sugakiite
Cu(Fe,Ni)8S8
Dana No: 02.07.02.02 Strunz No: 02.BB.15c
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.