Mineralogy Database

Heazlewoodite Mineral Data

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General Heazlewoodite Information

Help on Chemical  Formula: Chemical Formula: Ni3S2
Help on Composition: Composition: Molecular Weight = 240.20 gm
   Nickel  73.30 %  Ni
   Sulfur  26.70 %  S
          100.00 % 
Help on Empirical Formula: Empirical Formula: Ni3S2
Help on Environment: Environment: In serpentine, probably of hydrothermal origin.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1896
Help on Locality: Locality: In the USA, from Josephine Co., Oregon. From Heazlewood and Trial Harbour, Tasmania, Australia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For the locality at Heazlewood, Tasmania, Australia.
Help on Name Pronunciation: Name Pronunciation: Heazlewoodite + Pronunciation Say HEAZLEWOODITE
Help on Synonym: Synonym: ICSD 23114
  PDF 44-1418

Heazlewoodite Image

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Comments: Small crystal aggregate of heazlewoodite.
Location: Jeffrey Mine, Asbestos, Quebec, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Heazlewoodite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.24351
Help on Cell Dimensions: Cell Dimensions: a = 5.741, c = 7.139, Z = 3; V = 203.77 Den(Calc)= 5.87
Help on Crystal System: Crystal System: Trigonal - Trapezohedral H-M Symbol (3 2) Space Group: R 32
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.83(1), 2.89(0.9), 1.66(0.8),

Physical Properties of Heazlewoodite

Help on Cleavage: Cleavage: None
Help on Color: Color: Light bronze, Brass yellow.
Help on Density: Density: 5.82
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Disseminated - Occurs in small, distinct particles dispersed in matrix.
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Metallic
Help on Streak: Streak: light bronze

Optical Properties of Heazlewoodite

Help on RL Anisotrophism: RL Anisotrophism: Strong, brown to bluish gray.
Help on RL Color: RL Color: Cream, yellowish.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Heazlewoodite in Air
λ R  ∑ R(λ) 
 400 nm   34.20   
 420 nm   40.00 
 440 nm   45.80 
 460 nm   49.90 
 480 nm   52.90 
 500 nm   55.00 
 520 nm   56.20 
 540 nm   57.00 
 560 nm   57.40 
 580 nm   57.60 
 600 nm   58.00 
 620 nm   58.40 
 640 nm   59.00 
 660 nm   59.50 
 680 nm   60.10 
 700 nm   60.80 
Calculated Relative Intensity Colors of Heazlewoodite in Air
   0%   20%   40%   60%   80% 100% 120% 140% 160% 180% 190%

Calculated Properties of Heazlewoodite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.67 gm/cc
note: Specific Gravity of Heazlewoodite =5.87 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEHeazlewoodite = 30.84 barns/electron
U=PEHeazlewoodite x rElectron Density= 174.82 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Heazlewoodite is Not Radioactive

Heazlewoodite Classification

Help on  Dana Class: Dana Class: (02)Sulfides - Including Selenides and Tellurides
  (02.05)where Am Bn Xp, with (m+n):p=3:2
  (02.05.03)Dana Group Heazlewoodite Ni3S2 R 32 3 2
Help on  Strunz Class: Strunz Class: 02.BB.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1)
  02.BB -With Ni, Fe
02.BB.05 Heazlewoodite Ni3S2 R 32 3 2

Other Heazlewoodite 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 Heazlewoodite :
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

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Dana No: Strunz No: 02.BB.05





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