Mineralogy Database

Donharrisite Mineral Data

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General Donharrisite Information

Help on Chemical  Formula: Chemical Formula: Ni8Hg3S9
Help on Composition: Composition: Molecular Weight = 1,359.88 gm
   Nickel   34.53 %  Ni
   Mercury  44.25 %  Hg
   Sulfur   21.22 %  S
           100.00 % 
Help on Empirical Formula: Empirical Formula: Ni8Hg3S9
Help on IMA Status: IMA Status: Approved IMA 1988
Help on Locality: Locality: Erasmus mine, Leogang, Salzburg Province, Austria. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Donald C. Harris (1936-), Canadian mineralogist.
Help on Name Pronunciation: Name Pronunciation: Donharrisite + Pronunciation Say DONHARRISITE
Help on Synonym: Synonym: IMA1987-007

Donharrisite Image

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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

Donharrisite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.6874:1:1.5803
Help on Cell Dimensions: Cell Dimensions: a = 11.66, b = 6.91, c = 10.92, Z = 2; beta = 97.43° V = 872.44 Den(Calc)= 5.18
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.547(1), 5.09(0.7), 5.75(0.7),

Physical Properties of Donharrisite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Brown.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Micaceous - Platy texture with "flexible" plates.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Metallic
Help on Streak: Streak: brownish gray

Calculated Properties of Donharrisite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.63 gm/cc
note: Specific Gravity of Donharrisite =5.18 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.13
Boson Index = 0.87
Help on Photoelectric: Photoelectric: PEDonharrisite = 716.65 barns/electron
U=PEDonharrisite x rElectron Density=3,319.47 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Donharrisite is Not Radioactive

Donharrisite Classification

Help on  Dana Class: Dana Class: (02)Sulfides - Including Selenides and Tellurides
  (02.06)where Am Bn Xp, with (m+n):p=4:3
  (02.06.06)Dana Group Donharrisite Ni8Hg3S9 C 2/m 2/m
Help on  Strunz Class: Strunz Class: 02.BD.20 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1)
  02.BD -With Hg, Tl
02.BD.20 Donharrisite Ni8Hg3S9 C 2/m 2/m

Other Donharrisite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8)
Help on See Also: 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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Dana No: Strunz No: 02.BD.20





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