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Heazlewoodite Mineral Data
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General Heazlewoodite Information
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 Chemical Formula: |
Ni3S2 |
| Composition: |
Molecular Weight = 240.20 gm |
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Nickel 73.30 % Ni |
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Sulfur 26.70 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Ni3S2 |
| Environment: |
In serpentine, probably of hydrothermal origin. |
| IMA Status: |
Valid Species (Pre-IMA) 1896 |
| Locality: |
In the USA, from Josephine Co., Oregon. From Heazlewood and Trial Harbour, Tasmania, Australia. Link to MinDat.org Location Data. |
| Name Origin: |
For the locality at Heazlewood, Tasmania, Australia. |
| Name Pronunciation: |
Heazlewoodite + Pronunciation  |
| Synonym: |
ICSD 23114 |
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PDF 44-1418 |
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Heazlewoodite Image |
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Images:
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Heazlewoodite Crystallography
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| Axial Ratios: |
a:c = 1:1.24351 |
| Cell Dimensions: |
a = 5.741, c = 7.139, Z = 3; V = 203.77 Den(Calc)= 5.87 |
| Crystal System: |
Trigonal - Trapezohedral H-M Symbol (3 2) Space Group: R 32 |
| X Ray Diffraction: |
By Intensity(I/Io): 1.83(1), 2.89(0.9), 1.66(0.8), |
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Physical Properties of Heazlewoodite
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| Cleavage: |
None |
| Color: |
Light bronze, Brass yellow. |
| Density: |
5.82 |
| Diaphaneity: |
Opaque |
| Habit: |
Disseminated - Occurs in small, distinct particles dispersed in matrix. |
| Habit: |
Massive - Uniformly indistinguishable crystals forming large masses. |
| Hardness: |
4 - Fluorite |
| Luster: |
Metallic |
| Streak: |
light bronze |
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Optical Properties of Heazlewoodite
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| RL Anisotrophism: |
Strong, brown to bluish gray. |
| RL Color: |
Cream, yellowish. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Heazlewoodite in Air
| λ |
R |
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∑ R(λ) |
| 400 nm |
34.20 |
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| 420 nm |
40.00 |
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| 440 nm |
45.80 |
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| 460 nm |
49.90 |
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| 480 nm |
52.90 |
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| 500 nm |
55.00 |
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| 520 nm |
56.20 |
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| 540 nm |
57.00 |
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| 560 nm |
57.40 |
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| 580 nm |
57.60 |
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| 600 nm |
58.00 |
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| 620 nm |
58.40 |
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| 640 nm |
59.00 |
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| 660 nm |
59.50 |
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| 680 nm |
60.10 |
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| 700 nm |
60.80 |
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Calculated Relative Intensity Colors of Heazlewoodite in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
180% |
190% |
| R |
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Calculated Properties of Heazlewoodite
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| Electron Density: |
Bulk Density (Electron Density)=5.67 gm/cc
note: Specific Gravity of Heazlewoodite =5.87 gm/cc.
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| Fermion Index: |
Fermion Index = 0.01
Boson Index = 0.99 |
| Photoelectric: |
PEHeazlewoodite = 30.84 barns/electron
U=PEHeazlewoodite x rElectron Density= 174.82 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Heazlewoodite is Not Radioactive |
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Heazlewoodite Classification
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| Dana Class: |
02.05.03.01 (02)Sulfides - Including Selenides and Tellurides |
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(02.05)where Am Bn Xp, with (m+n):p=3:2 |
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(02.05.03)Dana Group |
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02.05.03.01 Heazlewoodite Ni3S2 R 32 3 2 |
| Strunz Class: |
02.BB.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1) |
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02.BB -With Ni, Fe |
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02.BB.05 Heazlewoodite Ni3S2 R 32 3 2 |
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Other Heazlewoodite Information
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| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| 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
15 - WWW-MINCRYST
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Print or Cut-and-Paste your Heazlewoodite Specimen Label here :
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Heazlewoodite
Ni3S2
Dana No: 02.05.03.01 Strunz No: 02.BB.05
Locality:
Notes:
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