General Sugakiite Information Chemical Formula: |
Cu(Fe,Ni)8S8 |
Composition: |
Molecular Weight = 772.05 gm |
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Iron 43.47 % Fe |
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Cobalt 0.15 % Co |
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Copper 7.00 % Cu |
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Nickel 16.19 % Ni |
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Sulfur 33.19 % S |
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______ |
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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:
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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 DipyramidalH-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 |
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| 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 |
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(02.07)where Am Bn Xp, with (m+n):p=9:8 |
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(02.07.02)Dana Group |
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Strunz Class: |
02.BB.15c 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1) |
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02.BB -With Ni, Fe |
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| 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: Visit our Advertisers for Sugakiite : A Bijoux Google Search for SugakiiteAdam's Minerals Google Search for Sugakiite Cape Minerals Google Search for Sugakiite Dakota Matrix Minerals Google Search for Sugakiite Excalibur Mineral Corp. Google Search for Sugakiite Exceptional Minerals Google Search for Sugakiite John Betts Fine Minerals Search for Sugakiite McDougall Minerals Google Search for Sugakiite Mineral News Website Link Rock and Mineral Shows Google Search for Sugakiite Weinrich Minerals, Inc. Google Search for Sugakiite Ask about Sugakiite here : Print or Cut-and-Paste your Sugakiite Specimen Label here :
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