Julienite Mineral Data (original) (raw)

General Julienite Information

Help on Chemical Formula: Chemical Formula:

Na2Co++(SCN)4•8(H2O)

Help on Composition: Composition:

Molecular Weight = 481.37 gm

Sodium 9.55 % Na

Cobalt 12.24 % Co

Hydrogen 3.35 % H

Carbon 9.98 % C

Sulfur 26.65 % S

Nitrogen 11.64 % N

Oxygen 26.59 % O

______

100.00 %

Help on Empirical Formula: Empirical Formula:

Na2Co(SCN)4•8(H2O)

Help on Environment: Environment:

Cobaltian wad in a white talc schist.

Help on IMA Status: IMA Status:

Not Approved (Pre-IMA) 1928

Help on Locality: Locality:

Chamitumba, near Kambove, Shaba, Zaire. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Henri Julien (-1920), Belgian scientist.

Help on Name Pronunciation: Name Pronunciation:

Julienite + Pronunciation Say JULIENITE

Help on Synonym: Synonym:

ICSD 16830

PDF 2-372

Sodium colbalt thiocyanate

Julienite Image

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

Julienite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:0.60281

Help on Cell Dimensions: Cell Dimensions:

a = 9.24, c = 5.57, Z = 1; V = 475.55 Den(Calc)= 1.68

Help on Crystal System: Crystal System:

Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: P 41/n

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 1.375(1), 3.23(1), 3.55(1),

Click Here for Large Julienite Structure Window Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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Help on Above

| | Mereiter K , Preisinger A , Acta Crystallographica, Section B , 38 (1982) p.1084-1088, The structure of sodium tetraisothiocyanatocobaltate(II) octahydrate Na2[Co(NCS)4]*8H2O, Locality: synthetic | | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Julienite

Help on Cleavage: Cleavage:

{001} Good

Help on Color: Color:

Blue.

Help on Density: Density:

1.648

Help on Habit: Habit:

Encrustations - Forms crust-like aggregates on matrix.

Optical Properties of Julienite

Help on Optical Data: Optical Data:

Uniaxial (+), w=1.556, e=1.645, bire=0.0890.

Calculated Properties of Julienite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=1.71 gm/cc
note: Specific Gravity of Julienite =1.68 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.11
Boson Index = 0.89

Help on Photoelectric: Photoelectric:

PEJulienite = 5.62 barns/electron
U=PEJulienite x rElectron Density= 9.61 barns/cc.

Help on Radioactivity: Radioactivity:

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

Julienite Classification

Help on Dana Class: Dana Class:

50.02.03.01 (50)Salts of Organic Acids

(50.02)(Mellitates, Citrates, Cyanates, and Acetates)

(50.02.03)Dana Group

50.02.03.01 Julienite* Na2Co(SCN)4•8(H2O) P 41/n 4/m

Help on Strunz Class: Strunz Class:

10.AD.05 10 - ORGANIC COMPOUNDS

10.A - Salts of Organic Acids

10.AD -Cyanates

10.AD.05 Julienite* Na2Co(SCN)4•8(H2O) P 41/n 4/m

Other Julienite Information

Help on References: References:

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

Help on See Also: See Also:

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

Julienite

Na2Co++(SCN)4•8(H2O)
Dana No: 50.02.03.01 Strunz No: 10.AD.05
Locality:

Notes: