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Paraotwayite

Big Photo

Vaca Muerta meteorite, Taltal, Antofagasta Province, Antofagasta Region, Chile
© 2008, JGW

Formula:
Ni(OH)
 
2-x
(SO
 
4
,CO
 
3
)
 
0.5x
System:MonoclinicColour:Emerald-green
Hardness:4


A mineral closely related to otwayite.

Classification of Paraotwayite

IMA status:Approved
Strunz 8th edition ID:4/F.03-50
Nickel-Strunz 10th (pending) edition ID:7.BB.45

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
B : With medium-sized cations
Dana 8th edition ID:6.2.12.1

6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
2 : X(OH)2
Hey's CIM Ref.:12.2.21

12 : Carbonates with other anions
2 : Carbonates with sulphate
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Type Occurrence of Paraotwayite

Type Locality:Otway Ni deposit, Nullagine, East Pilbara Shire, Pilbara Region, Western Australia, Australia
Year of Discovery:1987

Physical Properties of Paraotwayite

Lustre:Silky
Colour:Emerald-green
Hardness (Mohs):4

Crystallography of Paraotwayite

Crystal System:Monoclinic
Cell Parameters:a = 7.89Å, b = 2.96Å, c = 13.63Å
β = 91.1°
Ratio:a:b:c = 2.666 : 1 : 4.605
Unit Cell Volume:V 318 ų
Z:6
X-Ray Powder Diffraction:
d-spacingIntensity
6.81(10)
5.083(8)
3.859(5)
2.946(4)
Comments:Only strongest lines

Optical Data of Paraotwayite

Type:Biaxial
RI values: nα = 1.655 nγ = 1.705
Maximum Birefringence:δ = 0.050

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

Chemical Properties of Paraotwayite

Formula:
Ni(OH)
 
2-x
(SO
 
4
,CO
 
3
)
 
0.5x
Essential elements:H, Ni, O, S
All elements listed in formula:C, H, Ni, O, S

Relationship of Paraotwayite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.BB.05Caminite
Mg
 
7
[(OH)
 
4
|(SO
 
4
)
 
5
] · H
 
2
O
7.BB.10Hauckite
Fe
3+
3
(Mg,Mn
2+
 
)
 
24
Zn
 
18
[(OH)
 
81
|(CO
 
3
)
 
2
|(SO
 
4
)
 
4
]
7.BB.15Antlerite
Cu
 
3
[(OH)
 
4
|SO
 
4
]
7.BB.20Dolerophanite
Cu
 
2
[O|SO
 
4
]
7.BB.25Brochantite
Cu
 
4
[(OH)
 
6
|SO
 
4
]
7.BB.30Vergasovaite
Cu
 
3
[O|SO
 
4
|(MoO
 
4
,SO
 
4
)]
7.BB.35Klebelsbergite
Sb
 
4
[O
 
4
|(OH)
 
2
|SO
 
4
]
7.BB.40Schuetteite
Hg
2+
3
[O
 
2
|SO
 
4
]
7.BB.50Xocomecatlite
Cu
 
3
[(OH)
 
4
|TeO
 
4
]
7.BB.55Pauflerite
(V
4+
 
O)[SO
 
4
]
Related Minerals - Hey's Index Grouping:

- +
12.2.1Burkeite
Na
 
6
CO
 
3
(SO
 
4
)
 
2
12.2.2Hanksite
Na
 
22
K(SO
 
4
)
 
9
(CO
 
3
)
 
2
Cl
12.2.3Tychite
Na
 
6
Mg
 
2
SO
 
4
(CO
 
3
)
 
4
12.2.4Motukoreaite
NaMg
 
19
Al
 
12
(CO
 
3
)
 
6.5
(SO
 
4
)
 
4
(OH)
 
54
·28H
 
2
O
12.2.5Ferrotychite
Na
 
6
(Fe,Mn,Mg)
 
2
SO
 
4
(CO
 
3
)
 
4
12.2.6Nakauriite
Cu
 
8
[(OH)
 
6
|CO
 
3
|(SO
 
4
)
 
4
] · 48H
 
2
O
12.2.7Carbonatecyanotrichite
Cu
 
4
Al
 
2
[(OH)
 
12
|(CO
 
3
,SO
 
4
)] · 2H
 
2
O
12.2.8Rapidcreekite
Ca
 
2
[CO
 
3
|SO
 
4
] · 4H
 
2
O
12.2.9Tatarskite
Ca
 
6
Mg
 
2
(SO
 
4
)
 
2
(CO
 
3
)
 
2
Cl
 
4
(OH)
 
4
·7H
 
2
O
12.2.10Schulenbergite
(Cu,Zn)
 
7
[(OH)
 
10
|(SO
 
4
,CO
 
3
)
 
2
] · 3H
 
2
O
12.2.11Leadhillite
Pb
 
4
SO
 
4
(CO
 
3
)
 
2
(OH)
 
2
12.2.12Macphersonite
Pb
 
4
SO
 
4
(CO
 
3
)
 
2
(OH)
 
2
12.2.13Susannite
Pb
 
4
SO
 
4
(CO
 
3
)
 
2
(OH)
 
2
12.2.14Wherryite
Pb
 
7
Cu
 
2
(SO
 
4
)
 
4
(SiO
 
4
)
 
2
(OH)
 
2
12.2.15Caledonite
Cu
 
2
Pb
 
5
[(OH)
 
6
|CO
 
3
|(SO
 
4
)
 
3
]
12.2.16Nasledovite
PbMn
 
3
Al
 
4
(CO
 
3
)
 
4
SO
 
4
O
 
5
·5H
 
2
O
12.2.17Jouravskite
Ca
 
6
Mn
3+
2
[(OH)
 
4
|(SO
 
4
,CO
 
3
)]
 
3
 · 26H
 
2
O
12.2.18Schröckingerite
NaCa
 
3
(UO
 
2
)[F|(CO
 
3
)
 
3
|SO
 
4
] · 10H
 
2
O
12.2.19Manganotychite
Na
 
6
Mn
 
2
SO
 
4
(CO
 
3
)
 
4
12.2.20Hauckite
Fe
3+
3
(Mg,Mn
2+
 
)
 
24
Zn
 
18
[(OH)
 
81
|(CO
 
3
)
 
2
|(SO
 
4
)
 
4
]
12.2.22Carrboydite
(Ni,Cu)
 
14
Al
 
9
[(OH)
 
43
|(SO
 
4
,CO
 
3
)
 
6
] · 7H
 
2
O
12.2.23Mountkeithite
(Mg,Ni)
 
11
(Fe
3+
 
,Cr
3+
 
,Al)
 
3
[(OH)
 
24
|(SO
 
4
,CO
 
3
)
 
3.5
] · 11H
 
2
O
12.2.24Camerolaite
Cu
 
4
Al
 
2
[(OH)
 
10
|CO
 
3
|(HSbO
 
4
,SO
 
4
)] · 2H
 
2
O

Other Names for Paraotwayite

Synonyms:
IMA1984-045a
Other Languages:
German:Paraotwayit
Spanish:Paraotwayita

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 Paraotwayite

Reference List:Nickel, E. H. & Graham, J. (1987): Paraotwayite. A new nickel hydroxide mineral from Western Australia. Canadian Mineralogist: 25: 409-411.

Internet Links for Paraotwayite

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    Localities for Paraotwayite

    Hide Locality List
    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.
    (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
      • Pilbara Region
        • East Pilbara Shire
          • Nullagine
    		Nickel, E. H. & Graham, J. (1987): Paraotwayite. A new nickel hydroxide mineral from Western Australia. Canadian Mineralogist 25, 409-411.
    Chile
     
    • Antofagasta Region
      • Antofagasta Province
        • Taltal
    		Tom Loomis (Dakotamatrix) samples showed on his personal web site during 2007
    Mineral and/or Locality
    Google
     
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 10th Nov 2009 08:01:28