Donharrisite Mineral Data

General Donharrisite Information

Chemical Formula:

Ni8Hg3S9

Composition:

Molecular Weight = 1,359.88 gm

Nickel 34.53 % Ni

Mercury 44.25 % Hg

Sulfur 21.22 % S

______

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

Donharrisite Image

Images:

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

Donharrisite Crystallography

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 - PrismaticH-M Symbol (2/m) Space Group: C 2/m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.547(1), 5.09(0.7), 5.75(0.7),

Physical Properties of Donharrisite

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

Calculated Properties of Donharrisite

Electron Density:

Bulk Density (Electron Density)=4.63 gm/cc
note: Specific Gravity of Donharrisite =5.18 gm/cc.

Fermion Index:

Fermion Index = 0.13
Boson Index = 0.87

Photoelectric:

PE_Donharrisite= 716.65 barns/electron
U=PE_Donharrisite x rElectron Density=3,319.47 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Donharrisite is Not Radioactive

Donharrisite Classification

Dana Class:

02.06.06.01 (02)Sulfides - Including Selenides and Tellurides

(02.06)where Am Bn Xp, with (m+n):p=4:3

(02.06.06)Dana Group

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

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

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 :

Donharrisite

Ni8Hg3S9
Dana No: 02.06.06.01 Strunz No: 02.BD.20
Locality:

Notes: