Mineralogy Database

Jolliffeite Mineral Data

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General Jolliffeite Information

Help on Chemical  Formula: Chemical Formula: (Ni,Co)AsSe
Help on Composition: Composition: Molecular Weight = 212.63 gm
   Cobalt     6.93 %  Co
   Nickel    20.70 %  Ni
   Arsenic   35.24 %  As
   Selenium  37.13 %  Se
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Ni0.75Co0.25AsSe
Help on Environment: Environment: Se analogue of gersdorffite.
Help on IMA Status: IMA Status: Approved IMA 1991
Help on Locality: Locality: Shirley Penin., Lake Athabasca, SK, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named in 1991 for Alfred W. Jolliffe (1907-1988), Canadian geologist.
Help on Name Pronunciation: Name Pronunciation: Jolliffeite + Pronunciation Say JOLLIFFEITE
Help on Synonym: Synonym: ICSD 40656
  IMA1989-011
  PDF 45-1383
 

Jolliffeite Image

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

  Jolliffeite   Eskebornite

Comments: Back-scattered electron image of jolliffeite in sulfurian eskebornite. Note the cracked appearance and the different brightness of eskebornite, which is a reflection of variable ratio of selenium to sulfur. (CanMin v 42, p 844).
Location: Niederschlema-Alberoda uranium deposit, in the Erzgebirge region of Germany. Scale: See Image.
© Canadian Mineralogist

Jolliffeite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 5.831, Z = 4; V = 198.26 Den(Calc)= 7.12
Help on Crystal System: Crystal System: Isometric - Diploidal H-M Symbol (2/m 3) Space Group: P a3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.602(1), 1.757(0.8), 2.378(0.8),
 

Physical Properties of Jolliffeite

Help on Color: Color: Tin white.
Help on Density: Density: 7.1
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Hardness: Hardness: 6-6.5 - Orthoclase-Pyrite
Help on Luster: Luster: Metallic
 

Calculated Properties of Jolliffeite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.35 gm/cc
note: Specific Gravity of Jolliffeite =7.12 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEJolliffeite = 66.27 barns/electron
U=PEJolliffeite x rElectron Density= 420.48 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Jolliffeite is Not Radioactive
 

Jolliffeite Classification

Help on  Dana Class: Dana Class: 02.12.03.09 (02)Sulfides - Including Selenides and Tellurides
  (02.12)where Am Bn Xp, with (m+n):p=1:2
  (02.12.03)Cobaltite Group (Cubic or pseudocubic crystals)
 
02.12.03.01 Cobaltite CoAsS P ca21 mm2
 
02.12.03.02 Gersdorffite NiAsS P 213 2 3
 
02.12.03.03 Ullmannite NiSbS P 213 2 3
 
02.12.03.04 Willyamite (Co,Ni)SbS P 213 2 3
 
02.12.03.05 Tolovkite IrSbS P 213 2 3
 
02.12.03.06 Platarsite (Pt,Rh,Ru)AsS P a3 2/m 3
 
02.12.03.07 Irarsite (Ir,Ru,Rh,Pt)AsS P a3 2/m 3
 
02.12.03.08 Hollingworthite (Rh,Pt,Pd)AsS P a3 2/m 3
 
02.12.03.09 Jolliffeite (Ni,Co)AsSe P a3 2/m 3
 
02.12.03.10 Padmaite PdBiSe P 213 2 3
 
02.12.03.11 Michenerite (Pd,Pt)BiTe P 213 2 3
 
02.12.03.12 Maslovite PtBiTe P 213 2 3
 
02.12.03.13 Testibiopalladite PdTe(Sb,Te) P 213 2 3
 
02.12.03.14 Changchengite! IrBiS P 213 2 3
 
02.12.03.15 Milotaite! PdSbSe P 21/3 2 3
 
02.12.03.16 Kalungaite! PdAsSe Pa3 2/m 3
Help on  Strunz Class: Strunz Class: 02.EB.25 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.E - Metal Sulfides, M:S � 1:2
  02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc.
 
02.EB.25 Cobaltite CoAsS P ca21 mm2
 
02.EB.25 Changchengite! IrBiS P 213 2 3
 
02.EB.25 Hollingworthite (Rh,Pt,Pd)AsS P a3 2/m 3
 
02.EB.25 Gersdorffite NiAsS P 213 2 3
 
02.EB.25 Irarsite (Ir,Ru,Rh,Pt)AsS P a3 2/m 3
 
02.EB.25 Jolliffeite (Ni,Co)AsSe P a3 2/m 3
 
02.EB.25 Krutovite NiAs2 P a3 2/m 3
 
02.EB.25 Michenerite (Pd,Pt)BiTe P 213 2 3
 
02.EB.25 Maslovite PtBiTe P 213 2 3
 
02.EB.25 Mayingite IrBiTe P a3 2/m 3
 
02.EB.25 Padmaite PdBiSe P 213 2 3
 
02.EB.25 Platarsite (Pt,Rh,Ru)AsS P a3 2/m 3
 
02.EB.25 Ullmannite NiSbS P 213 2 3
 
02.EB.25 Tolovkite IrSbS P 213 2 3
 
02.EB.25 Testibiopalladite PdTe(Sb,Te) P 213 2 3
 
02.EB.25 Willyamite (Co,Ni)SbS P 213 2 3
 
02.EB.25 Kalungaite! PdAsSe Pa3 2/m 3
 
02.EB.25 Milotaite! PdSbSe P 21/3 2 3
 

Other Jolliffeite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996)
Help on See Also: See Also: Links to other databases for Jolliffeite :
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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Jolliffeite

(Ni,Co)AsSe
Dana No: 02.12.03.09 Strunz No: 02.EB.25
Locality:

 

Notes:

 

 
   
 


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