Bunsenite Mineral Data

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General Bunsenite Information

Chemical Formula:

NiO

Composition:

Molecular Weight = 74.69 gm

Nickel 78.58 % Ni 100.00 % NiO

Oxygen 21.42 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NiO

Environment:

In a hydrothermal Ni-U vein.

IMA Status:

Valid Species (Pre-IMA) 1868

Locality:

At Johanngeorgenstadt, Saxony, Germany. Link to MinDat.org Location Data.

Name Origin:

For Professor Robert William Eberhard Bunsen (1811-1899), German chemist of the University of Heidelberg, Heidelberg, Germany, who had observed artificial NiO.

Name Pronunciation:

Bunsenite + Pronunciation

Synonym:

ICSD 9866

PDF 4-835

Bunsenite Image

Images:

Bunsenite

Comments: Greenish earthy bunsenite.
Location: Johanngeorgenstadt, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Bunsenite Crystallography

Cell Dimensions:

a = 4.1768, Z = 4; V = 72.87 Den(Calc)= 6.81

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F m3m

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

By Intensity(I/I_o): 2.088(1), 2.41(0.91), 1.476(0.57),

Crystal Structure:

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Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York, rocksalt structure

Physical Properties of Bunsenite

Color:

Dark yellow green, Pistachio green.

Density:

6.4 - 6.8, Average = 6.6

Diaphaneity:

Translucent to opaque

Habit:

Crystalline - Fine - Occurs as well-formed fine sized crystals.

Hardness:

5.5 - Knife Blade

Luster:

Adamantine

Streak:

brown black

Optical Properties of Bunsenite

Gladstone-Dale:

CI meas= -0.059 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.026 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1806,KPDmeas= 0.1864,KC= 0.176
Ncalc = 2.13 - 2.2

Optical Data:

Isotropic, n=2.23.

Calculated Properties of Bunsenite

Electron Density:

Bulk Density (Electron Density)=6.56 gm/cc
note: Specific Gravity of Bunsenite =6.81 gm/cc.

Fermion Index:

Fermion Index = 0.0089822212
Boson Index = 0.9910177788

Photoelectric:

PE_Bunsenite= 31.62 barns/electron
U=PE_Bunsenite x rElectron Density= 207.56 barns/cc.

Radioactivity:

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

Bunsenite Classification

Dana Class:

04.02.01.02 (04)Simple Oxides

(04.02)with a cation charge of 2+ (A++ O)

(04.02.01)Periclase group (Isometric, Fm3m)

04.02.01.01 Periclase MgO F m3m 4/m 3 2/m

04.02.01.02 Bunsenite NiO F m3m 4/m 3 2/m

04.02.01.03 Manganosite MnO F m3m 4/m 3 2/m

04.02.01.04 Monteponite CdO F m3m 4/m 3 2/m

04.02.01.05 Lime CaO F m3m 4/m 3 2/m

04.02.01.06 Wustite FeO F m3m 4/m 3 2/m

04.02.01.07 Hongquiite* TiO F m3m 4/m 3 2/m

Strunz Class:

04.AB.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.A - Metal:Oxygen = 2.1 and 1:1

04.AB -M:O = 1:1 (and up to 1:1.25); with small to medium-sized cations only

04.AB.25 Bunsenite NiO F m3m 4/m 3 2/m

04.AB.25 Lime CaO F m3m 4/m 3 2/m

04.AB.25 Monteponite CdO F m3m 4/m 3 2/m

04.AB.25 Manganosite MnO F m3m 4/m 3 2/m

04.AB.25 Periclase MgO F m3m 4/m 3 2/m

04.AB.25 Wustite FeO F m3m 4/m 3 2/m

Other Bunsenite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)

See Also:

Links to other databases for Bunsenite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - University of Colorado - Mineral Structure Data
16 - WWW-MINCRYST

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Print or Cut-and-Paste your Bunsenite Specimen Label here :

Bunsenite

NiO
Dana No: 04.02.01.02 Strunz No: 04.AB.25
Locality:

Notes: