Miharaite Mineral Data (original) (raw)

General Miharaite Information

Help on Chemical Formula: Chemical Formula:

Cu4FePbBiS6

Help on Composition: Composition:

Molecular Weight = 918.61 gm

Iron 6.08 % Fe

Copper 27.67 % Cu

Bismuth 22.75 % Bi

Lead 22.56 % Pb

Sulfur 20.94 % S

______

100.00 %

Help on Empirical Formula: Empirical Formula:

Cu4Fe2+PbBiS6

Help on Environment: Environment:

As disseminations in a hedenbergit-garnet-epidote contact metamorphic deposit.

Help on IMA Status: IMA Status:

Approved IMA 1976

Help on Locality: Locality:

Mihara mine and the Imooka mine, Okayama Prefecture, Japan. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named after the locality.

Help on Name Pronunciation: Name Pronunciation:

Miharaite + Pronunciation Say MIHARAITE

Help on Synonym: Synonym:

ICSD 65082

PDF 33-461

Miharaite Image

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

Click Here for Larger Miharaite Image Miharaite Angelaite Comments: Image of a polished section of the ore (without analyzer): galena (ga) with numerous inclusions miharaíte (wi) and angelaíte (an). Pyrite (pi), chalcopyrite (cp). (AsocGeolArgent, v59, no 4). Location: Angela mine, IS-type mineralization in the district springs, Chubut, Argentina.Scale: See Image. © Revista de la Asociación Geológica Argentina

Miharaite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =0.9056:1:0.3229

Help on Cell Dimensions: Cell Dimensions:

a = 10.854, b = 11.985, c = 3.871, Z = 2; V = 503.56 Den(Calc)= 6.06

Help on Crystal System: Crystal System:

Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: Pb21m

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.03(1), 3(0.9), 2.68(0.8),

Click Here for Large Miharaite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

| | Petrova I V , Pobedimskaya E A , Bryzgalov I A , Doklady Akademii Nauk SSSR , 299 (1988) p.123-127, Crystal structure of micharaite Cu4FePbBiS6 | | -------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Miharaite

Help on Color: Color:

Gray.

Help on Density: Density:

6.06

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Habit: Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Help on Hardness: Hardness:

4 - Fluorite

Help on Luster: Luster:

Metallic

Optical Properties of Miharaite

Help on RL Anisotrophism: RL Anisotrophism:

Moderate, from grayish blue to pinkish brown.

Help on RL Color: RL Color:

Pale gray to grayish white.

Help on Reflectivity Reflectivity

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

λ R1 R 2 ∑ R1(λ) ∑ R2(λ)
480 nm 26.60 30.30
548 nm 30.80 31.50
589 nm 31.70 32.60
657 nm 32.10 34.20

Calculated Relative Intensity Colors of Miharaite in Air

RelativeIntensity 0% 40% 80% 100% 120% 160% 200% 240% 280% 320% 330%
R1
R2

Calculated Properties of Miharaite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=5.32 gm/cc
note: Specific Gravity of Miharaite =6.06 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Help on Photoelectric: Photoelectric:

PEMiharaite = 828.39 barns/electron
U=PEMiharaite x rElectron Density=4,404.67 barns/cc.

Help on Radioactivity: Radioactivity:

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

Miharaite Classification

Help on Dana Class: Dana Class:

03.01.05.01 (03)Sulfides - Sulfosalts

(03.01)where z/y > 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

(03.01.05)Dana Group

03.01.05.01 Miharaite Cu4FePbBiS6 Pb21m mm2

Help on Strunz Class: Strunz Class:

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

02.L - Unclassified Sulfosalts

02.LB -With essential Pb

02.LB.05 Miharaite Cu4FePbBiS6 Pb21m mm2

Other Miharaite Information

Help on References: References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

Help on See Also: See Also:

Links to other databases for Miharaite :
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 Miharaite here :
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Print or Cut-and-Paste your Miharaite Specimen Label here :

Miharaite

Cu4FePbBiS6
Dana No: 03.01.05.01 Strunz No: 02.LB.05
Locality:

Notes: