Sakuraiite Mineral Data (original) (raw)

General Sakuraiite Information

Help on Chemical Formula: Chemical Formula:

(Cu,Zn,Fe,In,Sn)4S4

Help on Composition: Composition:

Molecular Weight = 424.41 gm

Zinc 13.87 % Zn

Indium 24.35 % In

Iron 5.26 % Fe

Copper 20.96 % Cu

Silver 2.54 % Ag

Tin 2.80 % Sn

Sulfur 30.22 % S

______

100.00 %

Help on Empirical Formula: Empirical Formula:

Cu1.4Zn0.9Fe2+0.4Ag0.1In0.9Sn0.1S4

Help on Environment: Environment:

Exsolved sulfide in stannite in a banded hydrothermal vein.

Help on IMA Status: IMA Status:

Approved IMA 1967

Help on Locality: Locality:

Ikuno mine Hyogo Prefecture, Japan. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Kin-Ichi Sakurai (1912-1993), a Japanese amateur mineralogist.

Help on Name Pronunciation: Name Pronunciation:

Sakuraiite + Pronunciation Say SAKURAIITE

Sakuraiite Image

Click Here for Larger Sakuraiite Image in a New Browser Window Images:

Click Here for Larger Sakuraiite Image Sakuraiite Comments: Dark gray sakuraiite ore. Location: Ikuno Mine, Kanagase, Asago-Gun-Hyogo, Japan.Scale: Specimen Size 2 cm. © Thomas Witzke

Sakuraiite Crystallography

Help on Cell Dimensions: Cell Dimensions:

a = 5.4563, Z = 1; V = 162.44 Den(Calc)= 4.34

Help on Crystal System: Crystal System:

IsometricSpace Group: P 432, P 43m, or P m3m

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.15(1), 1.927(0.4), 1.65(0.2),2.73(0.1), 2.44(0.06), 3.85(0.06), 5.47(0.06),

Physical Properties of Sakuraiite

Help on Cleavage: Cleavage:

None

Help on Color: Color:

Greenish gray, Greenish steel gray.

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Habit: Habit:

Exsolution Inclusions - Formed by the exsolution of a separate mineral from the parent mineral caused by a temperature drop.

Help on Habit: Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Help on Hardness: Hardness:

4 - Fluorite

Help on Luster: Luster:

Metallic

Help on Streak: Streak:

lead olive gray

Optical Properties of Sakuraiite

Help on RL Anisotrophism: RL Anisotrophism:

Nearly isotropic.

Help on RL Color: RL Color:

Purplish olive-gray with a red tint.

Help on Reflectivity Reflectivity

Standardized Intensity (100%) Reflection Spectra of Sakuraiite in Air

λ R ∑ R(λ)
400 nm 22.50
420 nm 22.50
440 nm 22.50
460 nm 22.60
480 nm 22.60
500 nm 22.60
520 nm 22.60
540 nm 22.70
560 nm 22.60
580 nm 22.50
600 nm 22.50
620 nm 22.60
640 nm 22.60
660 nm 22.60
680 nm 22.60
700 nm 22.40

Calculated Relative Intensity Colors of Sakuraiite in Air

RelativeIntensity 0% 40% 80% 100% 120% 160% 200% 240% 280% 320% 360% 390%
R

Calculated Properties of Sakuraiite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=4.00 gm/cc
note: Specific Gravity of Sakuraiite =4.34 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Help on Photoelectric: Photoelectric:

PESakuraiite = 103.17 barns/electron
U=PESakuraiite x rElectron Density= 413.13 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sakuraiite is Not Radioactive

Sakuraiite Classification

Help on Dana Class: Dana Class:

02.09.02.05 (02)Sulfides - Including Selenides and Tellurides

(02.09)where Am Bn Xp, with (m+n):p=1:1

(02.09.02)Stannite Group (Tetragonal: I-42m) A2BCS type

02.09.02.01 Stannite Cu2FeSnS4 I 42m 4 2m

02.09.02.02 Cernyite Cu2CdSnS4 I 42m 4 2m

02.09.02.03 Briartite Cu2(Zn,Fe)GeS4 I 42m 4 2m

02.09.02.04 Kuramite Cu3SnS4 I 42m 4 2m

02.09.02.05 Sakuraiite (Cu,Zn,Fe,In,Sn)4S4 P 432, P 43m, or P m3m Cubic

02.09.02.06 Hocartite Ag2FeSnS4 I 42m 4 2m

02.09.02.07 Pirquitasite Ag2ZnSnS4 I 42m 4 2m

02.09.02.08 Velikite Cu2HgSnS4 I 42m 4 2m

02.09.02.09 Kesterite Cu2(Zn,Fe)SnS4 I 4 4

02.09.02.10 Ferrokesterite Cu2(Fe,Zn)SnS4 I 42m 4 2m

02.09.02.11 Barquillite! Cu2CdGeS4 I 42m 4 2m

Help on Strunz Class: Strunz Class:

02.CB.05b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.C - Metal Sulfides, M:S = 1:1 (and similar)

02.CB -With Zn, Fe, Cu, Ag, Au, etc

02.CB.05b Sakuraiite (Cu,Zn,Fe,In,Sn)4S4 P 432, P 43m, or P m3m Cubic

Other Sakuraiite Information

Help on References: References:

NAME( AntBidBlaNic1) PHYS. PROP.(AntBidBlaNic1) OPTIC PROP.(AntBidBlaNic1)

Help on See Also: See Also:

Links to other databases for Sakuraiite :
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

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Ask about Sakuraiite here :
Ask-A-Mineralogist from the Mineralogical Society of America
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Rockhounds Discussion Group on Yahoo Groups
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Print or Cut-and-Paste your Sakuraiite Specimen Label here :

Sakuraiite

(Cu,Zn,Fe,In,Sn)4S4
Dana No: 02.09.02.05 Strunz No: 02.CB.05b
Locality:

Notes: