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Paraotwayite (Paraotwayit)

Collectors Summary

Color smaragdgrün
Streak color weiß
Lustre Seidenglanz
Hardness (Mohs) 4.25
Solubility - kalte HNO3 oder HCl
Crystal System monoklin,

Chemism

Chemical formula

Ni(OH)2-x(SO4,CO3)0.5x

Chemical composition

Nickel, Kohlenstoff, Sauerstoff, Schwefel, Wasserstoff

Analysis wt%

NiO : 66.25, SO3 : 11.80, H2O : 17.42, CO2 : 4.67 (Ref: Canadian Mineralogist 87)

Strunz 9th edition incl. updates

7.BB.45

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
B: Sulfate (Selenate, etc.) mit weitere Anionen, ohne H2O
B: Mit mittelgroßen Kationen
45:

Lapis Classification

IV/F.03-050

IV: OXIDE
F: Hydroxide und oxidische Hydrate (wasserhaltige Oxide mit Schichtstruktur)
3: Brucit-Reihe

Classification by Hölzel

5.BA.350

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
B: Carbonates (+Anions -Water)
A: With small-medium cations, V=2
3: Hydrozincite-Group

Dana 8th edition

06.02.12.01

06: Hydroxides and Oxides Containing Hydroxyl
02: Hydroxides and Oxides Containing Hydroxyl where X++ (OH)2

Mineral status

anerkanntes Mineral

Optical Properties

Color

smaragdgrün

Streak color

weiß

Diaphaneity (Transparency)

durchscheinend

Lustre

Seidenglanz

max. Birefringence

0.050
Birefringence chart\! Paraotwayite title=Birefringence chart Paraotwayite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.655

RI value γ / ε

1.705

2V angle

Biaxial

Crystallography

Crystal System

monoklin

Cell parameters a (Å)

7.89

Cell parameters b (Å)

2.96

Cell parameters c (Å)

13.63

Cell parameters a/b or c/a

2.666

Cell parameters c/b

4.605

Cell parameters α

90°

Cell parameters β

91.10

Cell parameters γ

90°

Z

2

Volumne (ų)

318.262

X-Ray Powder Diffraction

7.95(20),
6.81(100),
5.083(80),
3.859(50),
3.390(20),
2.946(40),
2.239(80),
1.973(30)
XRD chart Paraotwayite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

4.25

VHN (Hardness Vickers)

223 (20g)

Density (g/cm³)

3.3

Instability

- kalte HNO3 oder HCl

(Co-)Type locality

(Co-)Type locality

Australien/Western Australia/Pilbara/East Pilbara Shire/Nullagine/Otway Ni-Lagerstätte

Paragenesis of type material

Dolomit, Gaspeit, Millerit, Polydymit, Chrysotil (Ni-haltig)

Preface

Author (Name, Year)

Nickel & Graham, 1987

References

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

American Mineralogist 73 (1988), 1496.

Neues Jahrbuch für Mineralogie, Abhandlungen 183 (2006), 107.

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Paraotwayite

Ni(OH)2-x(SO4,CO3)0.5x

7.BB.45

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Brucite

Mg(OH)2

trigonal : 3m : P3m1

IV/F.03-010

Amakinite

Fe(OH)2

trigonal : 3m : P3m1

IV/F.03-020

Pyrochroite

Mn(OH)2

trigonal : 3m : P3m1

IV/F.03-030

Theophrastite

Ni(OH)2

trigonal : 3m : P3m1

IV/F.03-040

Paraotwayite

Ni(OH)2-x(SO4,CO3)0.5x

IV/F.03-050

Jamborite

Ni2+1-xCo3+x(OH)2-x(SO4)x·nH2O

trigonal : 3m : R3m

IV/F.03-055

Sweetite

Zn(OH)2

IV/F.03-060

Ashoverite

Zn(OH)2

tetragonal : 4/mmm : I41/amd

IV/F.03-070

Wülfingite

Zn(OH)2

orthorhombisch : 222 : P212121

IV/F.03-080

Spertiniite

Cu(OH)2

orthorhombisch : mm2 : Cmc21

IV/F.03-090

Portlandite

Ca(OH)2

trigonal : 3m : P3m1

IV/F.03-100

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Hydrozincite

Zn5(CO3)2(OH)6

monoklin : 2/m : C2/m

5.BA.300

Aurichalcite

(Zn,Cu)5(CO3)2(OH)6

monoklin : 2/m : P21/m

5.BA.310

Brianyoungite

Zn3[(OH)4|(CO3,SO4)]

5.BA.340

Paraotwayite

Ni(OH)2-x(SO4,CO3)0.5x

5.BA.350

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Wülfingite

Zn(OH)2

orthorhombisch : 222 : P212121

 06.02.10.01

Ashoverite

Zn(OH)2

tetragonal : 4/mmm : I41/amd

 06.02.11.01

Paraotwayite

Ni(OH)2-x(SO4,CO3)0.5x

 06.02.12.01

Cianciulliite

Mn4+(Mg,Mn2+)2Zn21+(OH)10·2-4H2O

monoklin : 2/m : C2/m

 06.02.13.01

Other languages

German

Para-Otwayit

German

Paraotwayit

Spanish

Paraotwayita

French

Paraotwayite

English

Paraotwayite

IMA Number

IMA 1984-045a

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

 DeWikiPedia - search for: Paraotwayit
Google-Bilder-Suche - search for: Paraotwayit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Paraotwayit

English pages

 Mindat - search for: Paraotwayite
Webmineral - search for:Paraotwayite
Handbook-of-Mineralogy - search for: Paraotwayite
RRUFF - Raman, XRD and other mineral data - search for: Paraotwayite
RRUFF - References and PDF downloads - search for: Paraotwayite
American-Mineralogist-Crystal-Structure-Database - search for: Paraotwayite
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Mineral Dealer

German pages

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Crystal-Treasure.com - search for: Paraotwayit
Bosse - search for: Paraotwayit

Locations with GPS information




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