Julienite Mineral Data + Say JULIENITE

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 Synonym: Synonym: ICSD 16830
  PDF 2-372
  Sodium colbalt thiocyanate
 

Julienite Image

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Julienite

Comments: Bright blue nearly opaque prismatic micro crystal of julienite.
Location: Chamibumba, near Kambove, Katanga, Shaba, Zaire. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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),
 

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:

relectron=1.71 gm/cc
note: rJulienite =1.68 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.11918
Boson Index = 0.88082
Help on Photoelectric: Photoelectric:

PEJulienite = 5.62 barns/electron
U=PEJulienite x relectron= 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: 50.2.3.1 (50)Salts of Organic Acids
  (50.2)(Mellitates, Citrates, Cyanates, and Acetates)
  (50.2.3)Dana Group
 
50.2.3.1 Julienite * Na2Co(SCN)4·8(H2O) P 41/n 4/m
Help on  Strunz Class: Strunz Class: IX/A.02-50 IX - Organic compunds
  IX/A - Salts from organic acids. Other organic salts, a.o. mellates and citrates.
  IX/A.02 - Mellite - Abelsonite (?) series
 
IX/A.02-03 Dashkovaite! Mg(HCOO)2·2(H2O) P 21/c 2/m
 
IX/A.02-05 Formicaite! Ca(HCOO)2 P 41212 4 2 2
 
IX/A.02-10 Mellite Al2[C6(COO)6]·16(H2O) P 4122,P 4322 4 2 2
 
IX/A.02-16 Hoganite! Cu(CH3COO)2·H2O C 2/c 2/m
 
IX/A.02-18 Paceite! CaCu(CH3COO)4·6(H2O) I 4/m 4/m
 
IX/A.02-20 Calclacite Ca[Cl2/CH3COO]·10(H2O) P 21/a 2/m
 
IX/A.02-30 Earlandite Ca3(C6H5O7)·4(H2O) Unk Mono
 
IX/A.02-40 Kafehydrocyanite* K4Fe(CN)6·3(H2O) I 41/a 4/m
 
IX/A.02-50 Julienite Na2Co(SCN)4·8(H2O) P 41/n 4/m
 
IX/A.02-60 Abelsonite NiC31H32N4 P1 or P1 Tri
 

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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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Julienite

Na2Co++(SCN)4·8(H2O)
Dana No: 50.2.3.1 Strunz No: IX/A.02-50
Locality:

 

Notes:

 

 
   
 
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