Nickelhexahydrite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Nickelhexahydrite
Formula:
Ni(SO4) · 6H2O
Colour:
Bluish-green
Lustre:
Vitreous
Hardness:
2
Specific Gravity:
2.036
Crystal System:
Monoclinic
Member of:
Name:
Named for its relation to hexahydrite and ferrohexahydrite, and for its nickel content.
Type Locality:
Dimorph of:
Unique Identifiers
Mindat ID:
2889
Long-form identifier:
mindat:1:1:2889:5
GUID
(UUID V4):
(UUID V4):
63797e70-d1e3-4b1b-9037-f46acdd72ac0
IMA Classification of Nickelhexahydrite
Approved
First published:
1965
Classification of Nickelhexahydrite
7.CB.25
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
B : With only medium-sized cations
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
B : With only medium-sized cations
29.6.8.4
29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
25.12.13
25 : Sulphates
12 : Sulphates of Co and Ni
25 : Sulphates
12 : Sulphates of Co and Ni
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Nhhy | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Nickelhexahydrite
Pronunciation:
Play | Recorded by | Country |
---|---|---|
Jolyon Ralph | United Kingdom |
Physical Properties of Nickelhexahydrite
Vitreous
Transparency:
Translucent
Colour:
Bluish-green
Hardness:
2 on Mohs scale
Cleavage:
Perfect
on {010} less perfect on {100}
on {010} less perfect on {100}
Density:
2.036 g/cm3 (Measured) 2.05 g/cm3 (Calculated)
Optical Data of Nickelhexahydrite
Type:
Biaxial
RI values:
nα = 1.469 - 1.470 nγ = 1.493 - 1.494
Max Birefringence:
δ = 0.024
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively weak
Chemistry of Nickelhexahydrite
Mindat Formula:
Ni(SO4) · 6H2O
Elements listed:
Crystallography of Nickelhexahydrite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 9.880(3) Å, b = 7.288(2) Å, c = 24.130(3) Å
β = 98.6°
β = 98.6°
Ratio:
a:b:c = 1.356 : 1 : 3.311
Unit Cell V:
1,717.96 ų (Calculated from Unit Cell)
Z:
8
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
4.35 Å | (100) |
2.89 Å | (90) |
1.994 Å | (80) |
3.98 Å | (80) |
1.856 Å | (70) |
2.27 Å | (60) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 5: Initiation of plate tectonics | <3.5-2.5 |
43 : Shear-induced minerals (including mylonite/slickensides) | |
Stage 7: Great Oxidation Event | <2.4 |
45a : [Sulfates, arsenates, selenates, antimonates] | |
47a : [Near-surface hydration of prior minerals] | |
47b : [Sulfates and sulfites] | |
Stage 10b: Anthropogenic minerals | <10 Ka |
55 : Anthropogenic mine minerals |
Type Occurrence of Nickelhexahydrite
General Appearance of Type Material:
crystalline crusts and coatings
Place of Conservation of Type Material:
Mineralogical Institute, Tomsk Polytechnical Institute, Tomsk, Russia.
Associated Minerals at Type Locality:
Reference:
Oleinikov, B.V., Shvartsev, S.L., Mandrikova, N.T., Oleinikova, N.N. (1965) Nickelhexahydrite, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 94(5): 534-547.
Other Language Names for Nickelhexahydrite
Relationship of Nickelhexahydrite to other Species
Member of:
Other Members of this group:
Bianchite | Zn(SO4) · 6H2O | Mon. 2/m : P2/m |
Chvaleticeite | Mn(SO4) · 6H2O | Mon. 2/m : B2/b |
Ferrohexahydrite | FeSO4 · 6H2O | Mon. 2/m : B2/b |
Hexahydrite | MgSO4 · 6H2O | Mon. 2/m : P2/m |
Moorhouseite | Co(SO4) · 6H2O | Mon. 2/m : B2/b |
Common Associates
Associated Minerals Based on Photo Data:
5 photos of Nickelhexahydrite associated with Retgersite | NiSO4 · 6H2O |
2 photos of Nickelhexahydrite associated with Vajdakite | [(Mo6+O2)2(H2O)2As3+2O5] · 3H2O |
1 photo of Nickelhexahydrite associated with Morenosite | NiSO4 · 7H2O |
1 photo of Nickelhexahydrite associated with Pennine | Mg5Al(AlSi3O10)(OH)8 |
1 photo of Nickelhexahydrite associated with Nesquehonite | MgCO3 · 3H2O |
Related Minerals - Strunz-mindat Grouping
7.CB. | Sarvodaite | Al2(SO4)3 · 5H2O |
7.CB.02 | Voudourisite | CdSO4 · H2O |
7.CB.05 | Dwornikite | Ni(SO4) · H2O |
7.CB.05 | Gunningite | ZnSO4 · H2O |
7.CB.05 | Kieserite | MgSO4 · H2O |
7.CB.05 | Poitevinite | (Cu,Fe)SO4 · H2O |
7.CB.05 | Szmikite | MnSO4 · H2O |
7.CB.05 | Szomolnokite | FeSO4 · H2O |
7.CB.05 | Cobaltkieserite | CoSO4 · H2O |
7.CB.07 | Sanderite | MgSO4 · 2H2O |
7.CB.10 | Bonattite | CuSO4 · 3H2O |
7.CB.12 | Belogubite | CuZn(SO4)2 · 10H2O |
7.CB.15 | Aplowite | (Co,Mn,Ni)SO4 · 4H2O |
7.CB.15 | Boyleite | (Zn,Mg)SO4 · 4H2O |
7.CB.15 | Ilesite | (Mn,Zn,Fe)SO4 · 4H2O |
7.CB.15 | Rozenite | FeSO4 · 4H2O |
7.CB.15 | Starkeyite | MgSO4 · 4H2O |
7.CB.15 | Drobecite | CdSO4 · 4H2O |
7.CB.15 | Cranswickite | MgSO4 · 4H2O |
7.CB.20 | Chalcanthite | CuSO4 · 5H2O |
7.CB.20 | Jôkokuite | MnSO4 · 5H2O |
7.CB.20 | Pentahydrite | MgSO4 · 5H2O |
7.CB.20 | Siderotil | FeSO4 · 5H2O |
7.CB.25 | Bianchite | Zn(SO4) · 6H2O |
7.CB.25 | Chvaleticeite | Mn(SO4) · 6H2O |
7.CB.25 | Ferrohexahydrite | FeSO4 · 6H2O |
7.CB.25 | Hexahydrite | MgSO4 · 6H2O |
7.CB.25 | Moorhouseite | Co(SO4) · 6H2O |
7.CB.30 | Retgersite | NiSO4 · 6H2O |
7.CB.35 | Bieberite | CoSO4 · 7H2O |
7.CB.35 | Boothite | CuSO4 · 7H2O |
7.CB.35 | Mallardite | MnSO4 · 7H2O |
7.CB.35 | Melanterite | Fe2+(H2O)6SO4 · H2O |
7.CB.35 | Zincmelanterite | (Zn,Cu,Fe)SO4 · 7H2O |
7.CB.35 | Alpersite | (Mg,Cu)(SO4) · 7H2O |
7.CB.40 | Epsomite | MgSO4 · 7H2O |
7.CB.40 | Goslarite | ZnSO4 · 7H2O |
7.CB.40 | Morenosite | NiSO4 · 7H2O |
7.CB.45 | Alunogen | Al2(SO4)3 · 17H2O |
7.CB.45 | Meta-alunogen | Al2(SO4)3 · 12H2O |
7.CB.50 | Aluminocoquimbite | Al2Fe2(SO4)6(H2O)12 · 6H2O |
7.CB.50 | Lazaridisite | 3CdSO4 · 8H2O |
7.CB.52 | Pararaisaite | CuMg[Te6+O4(OH)2] · 6H2O |
7.CB.55 | Coquimbite | AlFe3(SO4)6(H2O)12 · 6H2O |
7.CB.55 | Paracoquimbite | Fe4(SO4)6(H2O)12 · 6H2O |
7.CB.55 | Rhomboclase | (H5O2)Fe3+(SO4)2 · 2H2O |
7.CB.55 | Raisaite | CuMg[Te6+O4(OH)2] · 6H2O |
7.CB.57 | Caichengyunite | Fe2+3Al2(SO4)6 · 30H2O |
7.CB.60 | Kornelite | Fe2(SO4)3 · 7H2O |
7.CB.65 | Quenstedtite | Fe2(SO4)3 · 11H2O |
7.CB.70 | Lausenite | Fe2(SO4)3 · 5H2O |
7.CB.75 | Lishizhenite | ZnFe2(SO4)4 · 14H2O |
7.CB.75 | Römerite | Fe2+Fe3+2(SO4)4 · 14H2O |
7.CB.80 | Ransomite | CuFe2(SO4)4 · 6H2O |
7.CB.85 | Apjohnite | Mn2+Al2(SO4)4 · 22H2O |
7.CB.85 | Bílinite | Fe2+Fe3+2(SO4)4 · 22H2O |
7.CB.85 | Dietrichite | (Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2O |
7.CB.85 | Halotrichite | FeAl2(SO4)4 · 22H2O |
7.CB.85 | Pickeringite | MgAl2(SO4)4 · 22H2O |
7.CB.85 | Redingtonite | (Fe2+,Mg,Ni)(Cr,Al)2(SO4)4 · 22H2O |
7.CB.85 | Wupatkiite | (Co,Mg,Ni)Al2(SO4)4 · 22H2O |
7.CB.90 | Meridianiite | MgSO4 · 11H2O |
Other Information
Notes:
Soluble in water
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Nickelhexahydrite
mindat.org URL:
https://www.mindat.org/min-2889.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Nickelhexahydrite
Reference List:
Localities for Nickelhexahydrite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Australia | |
| Judy Rowe collection |
Peter Eliott | |
Austria | |
| Lapis 19 (7/8) |
| Exel (1993) |
Bosnia and Herzegovina | |
| Bermanec et al. (2000) |
Canada | |
| Reiner Mielke |
Czech Republic | |
| Lapis 2002 (7/8) +2 other references |
| 70 (in German) +1 other reference |
Finland | |
| Karup-Moeller |
Germany | |
| Walenta (1992) |
| Weiß (1990) |
| |
| 54 +1 other reference |
| Der Aufschluss Vol.55 +2 other references |
| Witzke et al. (1997) |
Greece | |
| 90 (in German) +1 other reference |
Italy | |
| Piccoli et al. (2007) |
| Antofilli |
Antofilli | |
| SEM-EDAX |
| Artioli et al. (1990) |
| Brizzi et al. (1994) |
Japan | |
| Sanko-Gakkai Koen-Yoshi 27 (1989) |
Norway | |
| Rune S. Selbekk (2010) |
| Raade (1971) +1 other reference |
| Bergen Museum |
Russia | |
| Talovina et al. (2008) |
| Talovina et al. (2008) |
| Bortnikova et al. (2008) |
| Oleinikov B V et al. (1965) +1 other reference |
| Chukanov N V et al. (2009) |
Slovakia | |
| Fehér B. et al. (2016) |
Martin Števko-unpublished | |
Switzerland | |
| Romani (2000) +1 other reference |
Romani (2000) +1 other reference | |
| Ansermet (2012) |
| Stalder et al. (1998) |
| Christian Bracke Collection |
| Stalder et al. (1998) |
Christian Bracke Collection | |
Stalder et al. (1998) | |
UK | |
| Prof P. Williams - unpublished data |
USA | |
| Howard (1987) +1 other reference |
Quick NavTopAbout NickelhexahydriteUnique IdentifiersIMA Classification Classification Mineral SymbolsPronunciation Physical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence Other LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Sulphide deposit, Sohland an der Spree, Bautzen District, Saxony, Germany