Ernienickelite Mineral Data (original) (raw)

General Ernienickelite Information

Help on Chemical Formula: Chemical Formula:

NiMn++++3O7•3(H2O)

Help on Composition: Composition:

Molecular Weight = 389.55 gm

Manganese 42.31 % Mn 66.95 % MnO2

Nickel 15.07 % Ni 19.17 % NiO

Hydrogen 1.55 % H 13.87 % H2O

Oxygen 41.07 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

NiMn4+3O7•3(H2O)

Help on Environment: Environment:

Cavities in chalcedony in a laterized dunite.

Help on IMA Status: IMA Status:

Approved IMA 1994

Help on Locality: Locality:

SM7 open pit N of Siberia, Kalgoorlie district, WA, Australia. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Ernest (Ernie) Henry Nickel (1925-), Canadian-Australian mineralogist, Commonwealth Scientific and Industrial Research Organization (CISRO) and International Mineralogical Association (IMA).

Help on Name Pronunciation: Name Pronunciation:

Ernienickelite + Pronunciation Say ERNIENICKELITE

Help on Synonym: Synonym:

IMA1993-002

Ernienickelite Image

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Ernienickelite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:2.7309

Help on Cell Dimensions: Cell Dimensions:

a = 7.514, c = 20.52, Z = 6; V = 1,003.35 Den(Calc)= 3.87

Help on Crystal System: Crystal System:

TrigonalSpace Group: R 3 or R 3

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 6.84(1), 2.219(0.3), 4.01(0.2),

Physical Properties of Ernienickelite

Help on Cleavage: Cleavage:

{0001} Perfect

Help on Color: Color:

Reddish black.

Help on Density: Density:

3.84

Help on Diaphaneity: Diaphaneity:

Subtranslucent to Opaque

Help on Fracture: Fracture:

Brittle - Splintery - Brittle fracture leaving splintery fragments.

Help on Habit: Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Help on Habit: Habit:

Platy - Sheet forms (e.g. micas).

Help on Habit: Habit:

Rosette - Bundled tabular aggregates resembling rose flower petals.

Help on Hardness: Hardness:

2 - Gypsum

Help on Luster: Luster:

Sub Metallic

Help on Streak: Streak:

yellowish brown

Optical Properties of Ernienickelite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.256 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.262 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2545,KPDmeas= 0.2565,KC= 0.3447
Ncalc = 2.32 - 2.33

Help on Optical Data: Optical Data:

Uniaxial (-), e=1.97, w=2, bire=0.0300.

Calculated Properties of Ernienickelite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=3.73 gm/cc
note: Specific Gravity of Ernienickelite =3.84 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0019019619
Boson Index = 0.9980980381

Help on Photoelectric: Photoelectric:

PEErnienickelite = 16.89 barns/electron
U=PEErnienickelite x rElectron Density= 62.92 barns/cc.

Help on Radioactivity: Radioactivity:

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

Ernienickelite Classification

Help on Dana Class: Dana Class:

07.08.02.04 (07)Multiple Oxides

(07.08)where A B (O)2�x(H2O)

(07.08.02)Chalcophanite Group

07.08.02.01 Chalcophanite (Zn,Fe,Mn)Mn3O7•3(H2O) R 3 3

07.08.02.02 Aurorite (Mn,Ag,Ca)Mn3O7•3(H2O) P1 1

07.08.02.03 Jianshuiite (Mg,Mn)Mn3O7•3(H2O) R 3 or R 3 Trig

07.08.02.04 Ernienickelite NiMn3O7•3(H2O) R 3 or R 3 Trig

Help on Strunz Class: Strunz Class:

04.FL.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.F - Hydroxides (without V or U)

04.FL -Hydroxides with H2O � (OH); sheets of edge-sharing octahedra

04.FL.20 Aurorite (Mn,Ag,Ca)Mn3O7•3(H2O) P1 1

04.FL.20 Chalcophanite (Zn,Fe,Mn)Mn3O7•3(H2O) R 3 3

04.FL.20 Ernienickelite NiMn3O7•3(H2O) R 3 or R 3 Trig

04.FL.20 Jianshuiite (Mg,Mn)Mn3O7•3(H2O) R 3 or R 3 Trig

Other Ernienickelite Information

Help on References: References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

Help on See Also: See Also:

Links to other databases for Ernienickelite :
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 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Ask about Ernienickelite here :
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Print or Cut-and-Paste your Ernienickelite Specimen Label here :

Ernienickelite

NiMn++++3O7•3(H2O)
Dana No: 07.08.02.04 Strunz No: 04.FL.20
Locality:

Notes: