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Dwornikite

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Formula:
(Ni,Fe)SO4 · H2O
Colour:
White
Hardness:
2 - 3
Crystal System:
Monoclinic
Member of:
Name:
Named in 1982 by Charles Milton, Howard T. Evans, Jr., and Robert G. Johnson in honor of Edward J. Dwornik [March 23, 1920 USA - August 7, 2004 Lewes, Delaware, USA], analytical chemist and mineralogist for the United States Gelogical Survey.
This page provides mineralogical data about Dwornikite.


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Classification of DwornikiteHide

Approved
Approval Year:
1981
7.CB.05

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
B : With only medium-sized cations
29.6.2.6

29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
25.12.10

25 : Sulphates
12 : Sulphates of Co and Ni

Physical Properties of DwornikiteHide

Colour:
White
Streak:
White
Hardness:
2 - 3 on Mohs scale

Optical Data of DwornikiteHide

Type:
Biaxial
Dispersion:
r > v

Chemical Properties of DwornikiteHide

Formula:
(Ni,Fe)SO4 · H2O
IMA Formula:
NiSO4 · H2O

Crystallography of DwornikiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Cell Parameters:
a = 6.83 Å, b = 7.58 Å, c = 7.47 Å
β = 117.85°
Ratio:
a:b:c = 0.901 : 1 : 0.985
Unit Cell V:
341.94 ų (Calculated from Unit Cell)

Type Occurrence of DwornikiteHide

Synonyms of DwornikiteHide

Other Language Names for DwornikiteHide

Relationship of Dwornikite to other SpeciesHide

Member of:
Other Members of this group:
CobaltkieseriteCoSO4 · H2OMon. 2/m : B2/b
GunningiteZnSO4 · H2OMon. 2/m : B2/b
KieseriteMgSO4 · H2OMon. 2/m
SerrabrancaiteMnPO4 · H2OMon. 2/m : B2/b
SzmikiteMnSO4 · H2OMon.
SzomolnokiteFeSO4 · H2OMon. 2/m : B2/b

Related Minerals - Nickel-Strunz GroupingHide

7.CB.05GunningiteZnSO4 · H2OMon. 2/m : B2/b
7.CB.05KieseriteMgSO4 · H2OMon. 2/m
7.CB.05Poitevinite(Cu,Fe,Zn)SO4 · H2OTric.
7.CB.05SzmikiteMnSO4 · H2OMon.
7.CB.05SzomolnokiteFeSO4 · H2OMon. 2/m : B2/b
7.CB.05CobaltkieseriteCoSO4 · H2OMon. 2/m : B2/b
7.CB.07SanderiteMgSO4 · 2H2OOrth. 2 2 2 : P21 21 21
7.CB.10BonattiteCuSO4 · 3H2OMon.
7.CB.15Aplowite(Co,Mn,Ni)SO4 · 4H2OMon. 2/m
7.CB.15Boyleite(Zn,Mg)SO4 · 4H2OMon. 2/m : P21/b
7.CB.15Ilesite(Mn,Zn,Fe)SO4 · 4H2OMon. 2/m
7.CB.15RozeniteFeSO4 · 4H2OMon. 2/m : P21/b
7.CB.15StarkeyiteMgSO4 · 4H2OMon. 2/m : P21/b
7.CB.15DrobeciteCdSO4 · 4H2OMon. 2/m : P21/m
7.CB.15CranswickiteMgSO4 · 4H2OMon. m : Bb
7.CB.20ChalcanthiteCuSO4 · 5H2OTric. 1 : P1
7.CB.20JôkokuiteMnSO4 · 5H2OTric.
7.CB.20PentahydriteMgSO4 · 5H2OTric.
7.CB.20SiderotilFeSO4 · 5H2OTric.
7.CB.25Bianchite(Zn,Fe)SO4 · 6H2OMon. 2/m : P2/m
7.CB.25Chvaleticeite(Mn,Mg)SO4 · 6H2OMon. 2/m : B2/b
7.CB.25FerrohexahydriteFeSO4 · 6H2OMon. 2/m : B2/b
7.CB.25HexahydriteMgSO4 · 6H2OMon. 2/m : P2/m
7.CB.25Moorhouseite(Co,Ni,Mn)SO4 · 6H2OMon.
7.CB.25Nickelhexahydrite(Ni,Mg,Fe)SO4 · 6H2OMon.
7.CB.30RetgersiteNiSO4 · 6H2OTet. 4 2 2 : P41 21 2
7.CB.35BieberiteCoSO4 · 7H2OMon. 2/m : P2/m
7.CB.35BoothiteCuSO4 · 7H2OMon.
7.CB.35MallarditeMnSO4 · 7H2OMon. 2/m : P2/m
7.CB.35MelanteriteFeSO4 · 7H2OMon. 2/m : P21/b
7.CB.35Zincmelanterite(Zn,Cu,Fe)SO4 · 7H2OMon.
7.CB.35Alpersite(Mg,Cu)[SO4] · 7H2OMon. 2/m : P21/b
7.CB.40EpsomiteMgSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.40GoslariteZnSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.40MorenositeNiSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.45AlunogenAl2(SO4)3 · 17H2OTric. 1
7.CB.45Meta-alunogenAl2(SO4)3 · 12H2O
7.CB.50AluminocoquimbiteFeAl(SO4)3 · 9H2OTrig. 3m (3 2/m) : P3 1c
7.CB.55CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5Trig. 3m (3 2/m) : P3 1c
7.CB.55ParacoquimbiteFe2(SO4)3 · 9H2OTrig. 3 : R3
7.CB.55Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma
7.CB.60KorneliteFe2(SO4)3 · 7H2OMon. 2/m : P21/m
7.CB.65QuenstedtiteFe2(SO4)3 · 11H2OTric. 1 : P1
7.CB.70LauseniteFe2(SO4)3·5H2OMon. 2/m : P21/m
7.CB.75LishizheniteZnFe2(SO4)4 · 14H2OTric. 1 : P1
7.CB.75RömeriteFe2+Fe3+2(SO4)4 · 14H2OTric. 1 : P1
7.CB.80RansomiteCuFe2(SO4)4 · 6H2OMon. 2/m : P21/b
7.CB.85ApjohniteMn2+Al2(SO4)4 · 22H2OMon.
7.CB.85BíliniteFe2+Fe3+2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85Dietrichite(Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85HalotrichiteFeAl2(SO4)4 · 22H2OMon. 2 : P2
7.CB.85PickeringiteMgAl2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85Redingtonite(Fe2+,Mg,Ni)(Cr,Al)2(SO4)4·22H2OMon.
7.CB.85Wupatkiite(Co,Mg,Ni)Al2(SO4)4·22H2OMon.
7.CB.90MeridianiiteMgSO4 · 11H2OTric. 1 : P1

Related Minerals - Dana Grouping (8th Ed.)Hide

29.6.2.1KieseriteMgSO4 · H2OMon. 2/m
29.6.2.2SzomolnokiteFeSO4 · H2OMon. 2/m : B2/b
29.6.2.3SzmikiteMnSO4 · H2OMon.
29.6.2.4Poitevinite(Cu,Fe,Zn)SO4 · H2OTric.
29.6.2.5GunningiteZnSO4 · H2OMon. 2/m : B2/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

25.12.1BieberiteCoSO4 · 7H2OMon. 2/m : P2/m
25.12.2CobaltzippeiteCo(UO2)2(SO4)O2 · 3.5H2OMon. 2/m : B2/m
25.12.3Aplowite(Co,Mn,Ni)SO4 · 4H2OMon. 2/m
25.12.4Moorhouseite(Co,Ni,Mn)SO4 · 6H2OMon.
25.12.5RetgersiteNiSO4 · 6H2OTet. 4 2 2 : P41 21 2
25.12.6MorenositeNiSO4 · 7H2OOrth. 2 2 2 : P21 21 21
25.12.7NickelblöditeNa2(Ni,Mg)(SO4)2 · 4H2O
25.12.8Nickelboussingaultite(NH4)2Ni(SO4)2 · 6H2O
25.12.9NickelzippeiteNi2(UO2)6(SO4)3(OH)10 · 16H2O Mon.
25.12.11Honessite(Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2OTrig.
25.12.12Hydrohonessite(Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2OHex.
25.12.13Nickelhexahydrite(Ni,Mg,Fe)SO4 · 6H2OMon.

Other InformationHide

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

References for DwornikiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Milton, C. et al (1982): Mineralogical Magazine: 46: 351.
American Mineralogist: 68: 642.
Neues Jahrbuch für Mineralogie, Monatshefte (1991): 296-306.

Internet Links for DwornikiteHide

Localities for DwornikiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Peru (TL)
 
  • Pasco Department
    • Pasco Province
      • Huayllay District
[Min Mag 46 (1982), 351]; Milton C, Evans H T, Johnson R G (1982) Dwornikite, (Ni,Fe)SO4·H2O, a member of the kieserite group from Minasragra, Peru. Mineralogical Magazine 46, 351-355
Portugal
 
  • Aveiro District
    • Albergaria-a-Velha
      • Branca
Marques de Sá, J. & Leal Gomes, C. (2010): Les mines de cuivre et nickel de Palhal et Telhadela, Albergaria-a-Velha, Aveiro, Portugal. Le Règne Minéral, 92, 36-47.
Russia
 
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Rezh District
          • Lipovka pegmatite field
RRUFF specimen ID: R070379
Mineral and/or Locality  
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