Mineralogy Database

Nickelhexahydrite Mineral Data

Search Webmineral :
  
Advertisment

General Nickelhexahydrite Information

Help on Chemical  Formula: Chemical Formula: (Ni,Mg,Fe++)(SO4)•6(H2O)
Help on Composition: Composition: Molecular Weight = 252.25 gm
   Magnesium   2.89 %  Mg    4.79 % MgO
   Iron        2.21 %  Fe    2.85 % FeO
   Nickel     13.96 %  Ni   17.77 % NiO
   Hydrogen    4.80 %  H    42.85 % H2O
   Sulfur     12.71 %  S    31.74 % SO3
   Oxygen     63.43 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ni0.6Mg0.3Fe2+0.1(SO4)•6(H2O)
Help on Environment: Environment: Secondary mineral in nickel-bearing sulfide ores.
Help on IMA Status: IMA Status: Approved IMA 1965
Help on Locality: Locality: Severnaya mine, Norilsk, Siberia, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for nickel in the compostion and relationship to hexahydrite.
Help on Name Pronunciation: Name Pronunciation: Nickelhexahydrite Say NICKELHEXAHYDRITE
Help on Synonym: Synonym: ICSD 65018
  PDF 33-955
 

Nickelhexahydrite Image

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

  Nickelhexahydrite

Comments: Pale greenish crust of ferroan nickelhexahydrite.
Location: Sohland, Bautzen, Oberlausitz, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Nickelhexahydrite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.3723:1:3.3472
Help on Cell Dimensions: Cell Dimensions: a = 9.84, b = 7.17, c = 24, Z = 8; beta = 97.5° V = 1,678.78 Den(Calc)= 2.00
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.35(1), 2.89(0.9), 3.98(0.9),
 

Physical Properties of Nickelhexahydrite

Help on Cleavage: Cleavage: {010} Perfect, {100} Good
Help on Color: Color: Bluish green.
Help on Density: Density: 2.07
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Nickelhexahydrite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.062 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.03 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2408,KPDmeas= 0.2326,KC= 0.2481
Ncalc = 1.5 - 1.51
Help on Optical Data: Optical Data: Biaxial (?), a=1.469-1.47, g=1.493-1.494, bire=0.0240
 

Calculated Properties of Nickelhexahydrite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.08 gm/cc
note: Specific Gravity of Nickelhexahydrite =2.00 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.00620257
Boson Index = 0.99379743
Help on Photoelectric: Photoelectric: PENickelhexahydrite = 6.80 barns/electron
U=PENickelhexahydrite x rElectron Density= 14.12 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Nickelhexahydrite is Not Radioactive
 

Nickelhexahydrite Classification

Help on  Dana Class: Dana Class: 29.06.08.04 (29)Hydrated Acid and Sulfates
  (29.06)where A XO4 � x(H2O)
  (29.06.08)Hexahydrite Group (Space Group: C2/c)
 
29.06.08.01 Hexahydrite MgSO4•6(H2O) A2/a 2/m
 
29.06.08.02 Bianchite (Zn,Fe)(SO4)•6(H2O) C 2/c 2/m
 
29.06.08.03 Ferrohexahydrite FeSO4•6(H2O) C 2/c 2/m
 
29.06.08.04 Nickelhexahydrite (Ni,Mg,Fe)(SO4)•6(H2O) C 2/c 2/m
 
29.06.08.05 Moorhouseite (Co,Ni,Mn)SO4•6(H2O) C 2/c 2/m
 
29.06.08.06 Chvaleticeite (Mn,Mg)SO4•6(H2O) C 2/c 2/m
Help on  Strunz Class: Strunz Class: 07.CB.25 07 - SULFATES (SELENATES, TELLURATES)
  07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O
  07.CB -With only medium-sized cations
 
07.CB.25 Bianchite (Zn,Fe)(SO4)•6(H2O) C 2/c 2/m
 
07.CB.25 Ferrohexahydrite FeSO4•6(H2O) C 2/c 2/m
 
07.CB.25 Chvaleticeite (Mn,Mg)SO4•6(H2O) C 2/c 2/m
 
07.CB.25 Hexahydrite MgSO4•6(H2O) A2/a 2/m
 
07.CB.25 Moorhouseite (Co,Ni,Mn)SO4•6(H2O) C 2/c 2/m
 
07.CB.25 Nickelhexahydrite (Ni,Mg,Fe)(SO4)•6(H2O) C 2/c 2/m
 

Other Nickelhexahydrite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Nickelhexahydrite :
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

Search for Nickelhexahydrite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Nickelhexahydrite :

Ask about Nickelhexahydrite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Nickelhexahydrite Specimen Label here :

Nickelhexahydrite

(Ni,Mg,Fe++)(SO4)•6(H2O)
Dana No: 29.06.08.04 Strunz No: 07.CB.25
Locality:

 

Notes:

 

 
   
 


Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.