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Donharrisite Mineral Data
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General Donharrisite Information
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 Chemical Formula: |
Ni8Hg3S9 |
| Composition: |
Molecular Weight = 1,359.88 gm |
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Nickel 34.53 % Ni |
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Mercury 44.25 % Hg |
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Sulfur 21.22 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Ni8Hg3S9 |
| IMA Status: |
Approved IMA 1988 |
| Locality: |
Erasmus mine, Leogang, Salzburg Province, Austria. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Donald C. Harris (1936-), Canadian mineralogist. |
| Name Pronunciation: |
Donharrisite + Pronunciation  |
| Synonym: |
IMA1987-007 |
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Donharrisite Image |
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Images:
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Donharrisite
Comments: BSE photomicrograph of donharrisite showing remnants of subhedral polydymite crystals. (CanMin, v27:257).
Location: Found on a museum specimen from the former Erasmus miue, Schwardsp mining district, Leogang, Salzburg Province, Austria.
Scale: Scale Bar 20 µm.
© Canadian Mineralogist |
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Donharrisite Crystallography
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| Axial Ratios: |
a:b:c =1.6874:1:1.5803 |
| Cell Dimensions: |
a = 11.66, b = 6.91, c = 10.92, Z = 2; beta = 97.43° V = 872.44 Den(Calc)= 5.18 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m |
| X Ray Diffraction: |
By Intensity(I/Io): 2.547(1), 5.09(0.7), 5.75(0.7), |
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Physical Properties of Donharrisite
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| Cleavage: |
{001} Perfect |
| Color: |
Brown. |
| Diaphaneity: |
Opaque |
| Fracture: |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
| Habit: |
Micaceous - Platy texture with "flexible" plates. |
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Hardness: |
2 - Gypsum |
| Luster: |
Metallic |
| Streak: |
brownish gray |
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Calculated Properties of Donharrisite
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| Electron Density: |
Bulk Density (Electron Density)=4.63 gm/cc
note: Specific Gravity of Donharrisite =5.18 gm/cc.
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| Fermion Index: |
Fermion Index = 0.13
Boson Index = 0.87 |
| Photoelectric: |
PEDonharrisite = 716.65 barns/electron
U=PEDonharrisite x rElectron Density=3,319.47 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Donharrisite is Not Radioactive |
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Donharrisite Classification
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| Dana Class: |
02.06.06.01 (02)Sulfides - Including Selenides and Tellurides |
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(02.06)where Am Bn Xp, with (m+n):p=4:3 |
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(02.06.06)Dana Group |
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02.06.06.01 Donharrisite Ni8Hg3S9 C 2/m 2/m |
| Strunz Class: |
02.BD.20 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.BD -With Hg, Tl |
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02.BD.20 Donharrisite Ni8Hg3S9 C 2/m 2/m |
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Other Donharrisite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) |
| See Also: |
Links to other databases for Donharrisite :
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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Print or Cut-and-Paste your Donharrisite Specimen Label here :
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Donharrisite
Ni8Hg3S9
Dana No: 02.06.06.01 Strunz No: 02.BD.20
Locality:
Notes:
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