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Ernienickelite

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Siberia, Kalgoorlie-Boulder Shire, Western Australia, Australia
© Thomas Witzke

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Formula:
NiMn
 
3
O
 
7
 · 3H
 
2
O
System:TrigonalColour:Black, red-brown cast.
Hardness:2
Name:Named in honor of Ernest (Ernie) Henry Nickel (1925-2009), Canadian-Australian mineralogist, Canada Centre for Mineral and Energy Technology (CANMET), Ottawa (1953-1971), Division of Mineralogy, CSIRO, Wembley, Western Australia (1971-1985), for his outstanding contributions to research on the mineralogy and genesis of economic mineral deposits in Canada and Australia, and to his dedication to the formalization of mineral systematics.
This page provides mineralogical data about Ernienickelite.

Classification of Ernienickelite

IMA status:Approved
Strunz 8th edition ID:4/F.11-15
Nickel-Strunz 10th (pending) edition ID:4.FL.20

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
L : Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra
Dana 8th edition ID:7.8.2.4

7 : MULTIPLE OXIDES
8 : AB3X7
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Type Occurrence of Ernienickelite

Type Locality:SM7 pit, Siberia, Kalgoorlie-Boulder Shire, Western Australia, Australia
Place of Conservation of Type Material:Canadian Museum of Nature, cat. no. CMN#81510

Physical Properties of Ernienickelite

Diaphaneity (Transparency):Opaque
Colour:Black, red-brown cast.
Streak:yellow-brown
Hardness (Mohs):2
Hardness Data:Measured
Tenacity:Brittle
Fracture:Splintery
Density (measured):3.84 g/cm3
Density (calculated):3.83 g/cm3

Crystallography of Ernienickelite

Crystal System:Trigonal
Class (H-M):3 - Pyramidal
Space Group:R3
Cell Parameters:a = 7.5142(2) Å, c = 20.52(2) Å
Ratio:a:c = 1 : 2.731
Unit Cell Volume:V 1,003.40 ų (Calculated from Unit Cell)
Z:6
Morphology:platy crystals, hexagonal to nearly circular
Twinning:on {-12-10}
X-Ray Powder Diffraction:
d-spacingIntensity
6.84 (100)
2.219 (30)
4.01 (20)
1.884 (20)
1.575 (20)
3.44 (10)
2.748 (10)

Optical Data of Ernienickelite

Type:Uniaxial (-)
RI values: nω = 2.000 nε = 1.970
Maximum Birefringence:δ = 0.030

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High

Chemical Properties of Ernienickelite

Formula:
NiMn
 
3
O
 
7
 · 3H
 
2
O
Essential elements:H, Mn, Ni, O
All elements listed in formula:H, Mn, Ni, O
Common Impurities:Co,Mg

Relationship of Ernienickelite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.FL.Trébeurdenite
Fe
2+
2
Fe
3+
4
O
 
2
(OH)
 
10
CO
 
3
·3H
 
2
O
4.FL.05Woodallite
Mg
 
6
Cr
 
2
(OH)
 
16
Cl
 
2
 · 4H
 
2
O
4.FL.05Iowaite
Mg
 
6
Fe
3+
2
(OH)
 
16
Cl
 
2
 · 4H
 
2
O
4.FL.05Jamborite
(Ni
2+
 
,Ni
3+
 
,Co,Fe)(OH)
 
2
(OH,S,H
 
2
O)
4.FL.05Meixnerite
Mg
 
6
Al
 
2
(OH)
 
16
(OH)
 
2
 · 4H
 
2
O
4.FL.05Muskoxite
Mg
 
7
Fe
 
4
O
 
13
 · 10H
 
2
O
4.FL.05Fougèrite
Fe
2+
4
Fe
3+
2
(OH)
 
12
[CO
 
3
]·3H
 
2
O
4.FL.10Hydrocalumite
Ca
 
8
Al
 
4
(OH)
 
12
(Cl,CO
 
3
,OH)
 
2-x
 · 4H
 
2
O
4.FL.15Kuzelite
Ca
 
4
Al
 
2.4
(OH)
 
12
[SO
 
4
] · 6H
 
2
O
4.FL.20Aurorite
(Mn
2+
 
,Ag,Ca)Mn
4+
3
O
 
7
 · 3H
 
2
O
4.FL.20Chalcophanite
(Zn,Fe,Mn)Mn
 
3
O
 
7
 · 3H
 
2
O
4.FL.20Jianshuiite
(Mg,Mn)Mn
 
3
O
 
7
 · 3H
 
2
O
4.FL.25Woodruffite
Zn(Mn
4+
 
,Mn
3+
 
)
 
5
O
 
10
·3½H
 
2
O
4.FL.30Asbolane
(Ni,Co)
 
2-x
Mn
4+
 
(O,OH)
 
4
 · nH
 
2
O
4.FL.35Buserite
Na
 
4
Mn
 
14
O
 
27
 · 21H
 
2
O
4.FL.40Ranciéite
(Ca,Mn)Mn
 
4
O
 
9
 · 3H
 
2
O
4.FL.40Takanelite
(Mn,Ca)Mn
 
4
O
 
9
 · H
 
2
O
4.FL.45Birnessite
(Na,Ca)
 
0.5
(Mn
4+
 
,Mn
3+
 
)
 
2
O
 
4
 · 1.5H
 
2
O
4.FL.55Cianciulliite
Mn(Mg,Mn)
 
2
Zn
 
2
(OH)
 
10
 · 2-4H
 
2
O
4.FL.60Jensenite
Cu
 
3
[TeO
 
6
] · 2H
 
2
O
4.FL.65Leisingite
Cu(Mg,Cu,Fe,Zn)
 
2
[TeO
 
6
] · 6H
 
2
O
4.FL.70Akdalaite
4Al
 
2
O
 
3
 · H
 
2
O
4.FL.75Cafetite
(Ca,Mg)(Fe,Al)
 
2
Ti
 
4
O
 
12
 · 4H
 
2
O
4.FL.80Mourite
UMo
 
5
O
 
12
(OH)
 
10
4.FL.85Deloryite
Cu
 
4
(UO
 
2
)(MoO
 
4
)
 
2
(OH)
 
6

Other Names for Ernienickelite

Synonyms:
IMA1993-002
Other Languages:
German:Ernienickelit
Russian:Эрниеникелит
Spanish:Ernienickelita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Ernienickelite

Reference List:

- +
GRICE, J.D. GARTRELL, B., GAULT, R.A. & VAN VELTHUIZEN, J. (1994): Ernienickelite, NiMn3O73H2O, a new mineral species from the Siberia complex, Western Australia: comments on the crystallography of the calcophanite group. Canadian Mineralogist 32, 333-337.
Gorshkov, A.I., et al. (1992): Ni-chalcophanite: a new variety of the mineral from a weathering crust on ultramafic rocks of the Kempirsay massif (southern Urals: Izvest. Akad. Nauk, Ser. Geol. 1992 (11), 108-117. [abstract: American Mineralogist, 79,388(1994)]

Internet Links for Ernienickelite

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    • Localities for Ernienickelite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • Western Australia
      • Kalgoorlie-Boulder Shire
        • Siberia
    		GRICE, J.D. GARTRELL, B., GAULT, R.A. & VAN VELTHUIZEN, J. (1994): Ernienickelite, NiMn3O73H2O, a new mineral species from the Siberia complex, Western Australia: comments on the crystallography of the calcophanite group. Canadian Mineralogist 32, 333-337.
    Cameroon
     
    • East Region
      • Lomié
    		Lambert, R.J., and Noble, A.C. (2008): Nkamouna Cobalt Project Feasibility Study. Pincock, Allen & Holt NI 43-101 Technical Report for Geovic Mining Corp.
    Kazakhstan
     
    • Aktobe Province (Aqtöbe Oblysy; Aktubinskaya Oblast')
      • Urals
        • Kempirsai Cr deposit
    		Am.Min.79,388(1994)
    Senegal
     
    • Thiès Region
      • Tivaouane
    		Gunnar Farber specimens, 2007; Hühne, H. (2009): Traubiger Apatit und Ernienickelit aus den Phosphatminen Senegals. Lapis 34, 24.
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