Nordstromite Mineral Data (original) (raw)

General Nordstromite Information

Help on Chemical Formula: Chemical Formula:

Pb3CuBi7(S10Se4)

Help on Composition: Composition:

Molecular Weight = 2,784.51 gm

Copper 2.28 % Cu

Bismuth 52.54 % Bi

Lead 22.32 % Pb

Selenium 11.34 % Se

Sulfur 11.52 % S

______

100.00 %

Help on Empirical Formula: Empirical Formula:

Pb3CuBi7S10Se4

Help on Environment: Environment:

Of hydrothermal origin.

Help on IMA Status: IMA Status:

Approved IMA 1980

Help on Locality: Locality:

Falun (Fahlun), Kopparberg, Sweden. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for T. Nordstrom.

Help on Name Pronunciation: Name Pronunciation:

Nordstromite + Pronunciation Say NORDSTROMITE

Help on Synonym: Synonym:

Nordstroemite

Nordstromite Image

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

Click Here for Larger Nordstromite Image Nordstromite Weibullite Comments: Fibrous, silvery crystals of nordstromite. Lacking a chemical analysis it is possible that the crystal is weibullite instead. Location: Falu mine, Falun, Sweden.Scale: Crystal Size 1 mm. © Tom Loomis / Dakota Matrix

Nordstromite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =4.3722:1:4.2871

Help on Cell Dimensions: Cell Dimensions:

a = 17.97, b = 4.11, c = 17.62, Z = 2; beta = 94.3° V = 1,297.69 Den(Calc)= 7.13

Help on Crystal System: Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/m

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.066(1), 2.242(0.7), 3.583(0.5),

Click Here for Large Nordstromite Structure Window Crystal Structure:

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Help on Above

| | Mumme W G , The Canadian Mineralogist , 18 (1980) p.343-352, The crystal structure of nordstromite CuPb3Bi7(S,Se)14, from Falun,, Sweden: A member of the junoite homologous series, Locality: Falun, Sweden | | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Nordstromite

Help on Color: Color:

Gray.

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Habit: Habit:

Fibrous - Crystals made up of fibers.

Help on Hardness: Hardness:

2-2.5 - Gypsum-Finger Nail

Help on Luster: Luster:

Metallic

Optical Properties of Nordstromite

Help on Optical Data: Optical Data:

NCalc= 1.91 - from Gladstone-Dale relationship (KC = 0.1276) where Ncalc=Dcalc*KC+1

Help on RL Anisotrophism: RL Anisotrophism:

Dark gray to brown.

Help on RL Color: RL Color:

White with a gray tint.

Calculated Properties of Nordstromite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=5.90 gm/cc
note: Specific Gravity of Nordstromite =7.13 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Help on Photoelectric: Photoelectric:

PENordstromite =1,447.43 barns/electron
U=PENordstromite x rElectron Density=8,539.26 barns/cc.

Help on Radioactivity: Radioactivity:

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

Nordstromite Classification

Help on Dana Class: Dana Class:

03.07.13.01 (03)Sulfides - Sulfosalts

(03.07)where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

(03.07.13)Dana Group

03.07.13.01 Nordstromite Pb3CuBi7(S10Se4) P 21/m 2/m

Help on Strunz Class: Strunz Class:

02.JB.25c 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.J - Sulfosalts of PbS Archetype

02.JB -Galena derivatives, with Pb

02.JB.25c Nordstromite Pb3CuBi7(S10Se4) P 21/m 2/m

Other Nordstromite Information

Help on References: References:

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

Help on See Also: See Also:

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

Nordstromite

Pb3CuBi7(S10Se4)
Dana No: 03.07.13.01 Strunz No: 02.JB.25c
Locality:

Notes: