Dienerite Mineral Data

Dienerite Mineral Data +

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General Dienerite Information

Chemical Formula:

Ni3As

Composition:

Molecular Weight = 250.99 gm

Nickel 70.15 % Ni

Arsenic 29.85 % As

______

100.00 %

Empirical Formula:

Ni₃As

Environment:

Known only from one loose crystal. A questionable species.

IMA Status:

Valid Species (Pre-IMA) 1921

Locality:

Near Radstadt, Salzburg, Austria. Link to MinDat.org Location Data.

Name Origin:

Named after Karl Diener (1862-1928), Austrian paleontologist from Vienna who discovered the mineral.

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Dienerite Crystallography

Cell Dimensions:

a = 9.45, Z = 16; V = 843.91 Den(Calc)= 7.90

Crystal System:

Isometric - HextetrahedralH-M Symbol (4 3m) Space Group: I 43d

Physical Properties of Dienerite

Color:

Gray white.

Diaphaniety:

Opaque

Hardness:

3-3.5 - Calcite-Copper Penny

Luster:

Metallic

Calculated Properties of Dienerite

Electron Density:

r_electron=7.37 gm/cc
note: r_Dienerite=7.90 gm/cc.

Fermion Index

Fermion Index = 0.00792
Boson Index = 0.99208

Photoelectric:

PE_Dienerite= 49.74 barns/electron
U=PE_Dienerite x r_electron= 366.37 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Dienerite is Not Radioactive

Dienerite Classification

Dana Class:

2.2.2.3 (2)Sulfides - Including Selenides and Tellurides

(2.2)where Am Bn Xp, with (m+n):p=3:1

(2.2.2)Dana Group

2.2.2.1 Domeykite Cu3As I 43d 4 3m

2.2.2.2 Kutinaite Cu14Ag6As7 P m3m 4/m 3 2/m

2.2.2.3 Dienerite Ni3As I 43d 4 3m

Strunz Class:

II/A.04-10 II - Sulfides and sulphosalts

II/A - Alloys and alloylike compounds, with Copper, Silver, Gold and Nickel

II/A.04 - Dienerite - Maucherite series

II/A.04-10 Dienerite Ni3As I 43d 4 3m

II/A.04-20 Orcelite Ni5-xAs2(x=0.23) P 6₃cm 6mm

II/A.04-30 Maucherite Ni11As8 P 4₁2₁2,P 4₃2₁2 4 2 2

Other Dienerite Information

References:

NAME( CanMin, 8/99) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Dienerite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Dienerite

Ni3As
Dana No: 2.2.2.3 Strunz No: II/A.04-10
Locality:

Notes: