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Hydrowoodwardite

A valid IMA mineral species
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00817790014977368712030.jpg
Hydrowoodwardite

St Johannes Mine, Wolkenstein, Erzgebirgskreis, Saxony, Germany
02248080014947140783296.jpg
Hydrowoodwardite

St Christoph Mine, BĂ€renhecke, GlashĂŒtte, SĂ€chsische Schweiz-Osterzgebirge, Saxony, Germany
09750080014947781375436.jpg
Hydrowoodwardite

St Briccius Mine, Königswalde, Erzgebirgskreis, Saxony, Germany
05325380014950424538111.jpg
Hydrowoodwardite

St Johannes Mine, Wolkenstein, Erzgebirgskreis, Saxony, Germany
02248080014947140783296.jpg
Hydrowoodwardite

St Christoph Mine, BĂ€renhecke, GlashĂŒtte, SĂ€chsische Schweiz-Osterzgebirge, Saxony, Germany
09750080014947781375436.jpg
Hydrowoodwardite

St Briccius Mine, Königswalde, Erzgebirgskreis, Saxony, Germany
00817790014977368712030.jpg
Hydrowoodwardite

St Johannes Mine, Wolkenstein, Erzgebirgskreis, Saxony, Germany
02248080014947140783296.jpg
Hydrowoodwardite

St Christoph Mine, BĂ€renhecke, GlashĂŒtte, SĂ€chsische Schweiz-Osterzgebirge, Saxony, Germany
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About HydrowoodwarditeHide

Formula:
(Cu1-xAlx)(OH)2[SO4]x/2 · nH2O
( x < 0.5, n > 3x/2)
Colour:
Blue, greenish-blue, pale blue
Lustre:
Vitreous
Specific Gravity:
2.33
Crystal System:
Trigonal
Name:
Named as the higher hydrated analogue of woodwardite.
Slowly and reversibly dehydrates to woodwardite.
The range of composition currently ascribed to hydrowoodwardite may represent more than one species (Mills et al., 2012).

Compare also glaucocerinite.


Unique IdentifiersHide

Mindat ID:
7004
Long-form identifier:
mindat:1:1:7004:7
GUID
(UUID V4):
f92c6969-c0c6-479f-bea0-29ddb8a90969

IMA Classification of HydrowoodwarditeHide

IMA status:
Approved
IMA Formula:
(Cu1-xAlx)(SO4)x/2(OH)2 · nH2O (x < 0.5, n > 3x/2)
Approval year:
1996
First published:
1999

Classification of HydrowoodwarditeHide

Strunz-mindat (2024):
7.DD.35

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
D : With only medium-sized cations; sheets of edge-sharing octahedra

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
HwwdIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of HydrowoodwarditeHide

Lustre:
Vitreous
Transparency:
Translucent
Colour:
Blue, greenish-blue, pale blue
Streak:
Pale blue
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Comment:
Brittle upon loss of water.
Density:
2.33 g/cm3 (Measured)    2.48 g/cm3 (Calculated)

Optical Data of HydrowoodwarditeHide

Type:
Uniaxial (+)
RI values:
nω = 1.549 nε = 1.565
Max Birefringence:
δ = 0.016
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Pleochroism:
Non-pleochroic

Chemistry of HydrowoodwarditeHide

Mindat Formula:
(Cu1-xAlx)(OH)2[SO4]x/2 · nH2O

( x < 0.5, n > 3x/2)
Elements listed:
Al, Cu, H, O, S - search for minerals with similar chemistry

Crystallography of HydrowoodwarditeHide

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Cell Parameters:
a = 3.070(7) Å, c = 31.9(2) Å
Ratio:
a:c = 1 : 10.391
Unit Cell V:
260 ų
Z:
3
Comment:
Probable space group R-3m.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
10.5 Å(100)
5.26 Å(17)
3.50 Å(6)
2.60 Å(5b)
2.46 Å(2b)
2.23 Å(2b)
1.524 Å(4b)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47b : [Sulfates and sulfites]

Type Occurrence of HydrowoodwarditeHide

Type Locality:
ⓘ St Briccius Mine, Königswalde, Erzgebirgskreis, Saxony, Germany
General Appearance of Type Material:
Blue stalactitic aggregates and botryoidal porous crusts.
Place of Conservation of Type Material:
Technische UniversitÀt, Bergakademie, Freiberg, Germany, number 76639 (holotype).
Geological Setting of Type Material:
Secondary mineral in copper deposits.
Associated Minerals at Type Locality:
WoodwarditeSchulenbergiteNamuwiteLangiteLinarite
Allophane

Synonyms of HydrowoodwarditeHide

Other Language Names for HydrowoodwarditeHide

Relationship of Hydrowoodwardite to other SpeciesHide

Member of:
Woodwardite Group > Hydrotalcite Supergroup
Other Members of this group:
Honessite(Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2OTrig.
WoodwarditeCu1-xAlx(OH)2(SO4)x/2 · nH2OTrig. 3m (3 2/m) : R3m
ZincowoodwarditeZn1-xAlx(OH)2[SO4]x/2 · nH2OTrig.

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Hydrowoodwardite associated with WoodwarditeCu1-xAlx(OH)2(SO4)x/2 · nH2O
1 photo of Hydrowoodwardite associated with CarbonatecyanotrichiteCu4Al2(CO3,SO4)(OH)12 · 2H2O
1 photo of Hydrowoodwardite associated with SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O

Related Minerals - Strunz-mindat GroupingHide

7.DD.AsagiiteNiCu4(SO4)2(OH)6 · 6H2OMon. 2/m : P21/b
7.DD.05FelsƑbĂĄnyaiteAl4(SO4)(OH)10 · 4H2OMon. 2 : P21
7.DD.07LlantenesiteCu6Al[SeO4](OH)12Cl · 3H2OTrig. 3m : P3 1c
7.DD.10LangiteCu4(SO4)(OH)6 · 2H2OMon. m
7.DD.10PosnjakiteCu4(SO4)(OH)6 · H2OMon. m : Pm
7.DD.10WroewolfeiteCu4(SO4)(OH)6 · 2H2OMon. m : Pm
7.DD.10GobeliniteCoCu4(SO4)2(OH)6 · 6H2OMon. 2/m : P21/m
7.DD.10FehriteMgCu4(SO4)2(OH)6 · 6H2OMon. 2/m : P21/b
7.DD.15SpangoliteCu6Al(SO4)(OH)12Cl · 3H2OTrig. 3m : P3 1c
7.DD.15KobyasheviteCu5(SO4)2(OH)6 · 4H2OTric. 1 : P1
7.DD.15Unnamed (Dimorph of Devilline)CaCu4(SO4)2(OH)6 · 3H2OMon. 2/m : P21/b
7.DD.20KtenasiteZnCu4(SO4)2(OH)6 · 6H2OMon. 2/m : P21/b
7.DD.25ChristeliteCu2Zn3(SO4)2(OH)6 · 4H2OTric. 1 : P1
7.DD.30CampigliaiteMn2+Cu4(SO4)2(OH)6 · 4H2OMon. 2 : B2
7.DD.30DevillineCaCu4(SO4)2(OH)6 · 3H2OMon. 2/m : P21/b
7.DD.30OrthoserpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2OOrth. mm2 : Pca21
7.DD.30SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2OMon. 2/m : B2/b
7.DD.30NiedermayriteCdCu4(SO4)2(OH)6 · 4H2OMon. 2/m : P21/m
7.DD.30EdwardsiteCu3Cd2(SO4)2(OH)6 · 4H2O Mon. 2/m : P21/b
7.DD.35Carrboydite(Ni1-xAlx)(SO4)x/2(OH)2 · nH2OHex.
7.DD.35Glaucocerinite(Zn1-xAlx)(OH)2(SO4)x/2 · nH2OHex.
7.DD.35Honessite(Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2OTrig.
7.DD.35Hydrohonessite(Ni1-xFe3+x)(OH)2(SO4)x/2 · nH2OHex.
7.DD.35MotukoreaiteMg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2OTrig. 3m (3 2/m) : R3m
7.DD.35Mountkeithite[(Mg1-xFe3+x)(OH)2][SO4]x/2 · nH2OHex.
7.DD.35ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OTrig. 3 : R3
7.DD.35WermlanditeMg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2OTrig. 3m (3 2/m) : P3c1
7.DD.35WoodwarditeCu1-xAlx(OH)2(SO4)x/2 · nH2OTrig. 3m (3 2/m) : R3m
7.DD.35ZincaluminiteZn6Al6(SO4)2(OH)16 · 5H2O
7.DD.35ZincowoodwarditeZn1-xAlx(OH)2[SO4]x/2 · nH2OTrig.
7.DD.35NatroglaucoceriniteZn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OHex.
7.DD.35NikischeriteFe2+6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OTrig. 3 : R3
7.DD.40IsseliteCu6(SO4)(OH)10 · 5H2OOrth. mm2 : Pmn21
7.DD.40Lawsonbauerite(Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
7.DD.40Torreyite(Mg,Mn2+)7◻2Mn2+2Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
7.DD.45MooreiteMg9◻2Mn2Zn4(SO4)2(OH)26 · 8H2OMon. 2/m : P2/b
7.DD.45Hodgesmithite(Cu,Zn)6Zn(SO4)2(OH)10 · 3H2OTrig. 3 : P3
7.DD.47LahnsteiniteZn4(SO4)(OH)6 · 3H2O Tric. 1 : P1
7.DD.50NamuwiteZn4(SO4)(OH)6 · 4H2OTrig. 3 : P3
7.DD.50Minohlite(Cu,Zn)7(SO4)2(OH)10 · 8H2OHex.
7.DD.52LauraniiteCu6Cd2(SO4)2(OH)12 · 5H2OMon. 2/m : P21/b
7.DD.55BechereriteZn7Cu(OH)13[(SiO(OH)3(SO4)]Trig. 3 : P3
7.DD.60Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2OMon. 2/m
7.DD.65VonbezingiteCa6Cu3(SO4)3(OH)12 · 2H2OMon. 2/m : P21/b
7.DD.70RedgilliteCu6(SO4)(OH)10 · H2OMon. 2/m : P21/b
7.DD.75ChalcoalumiteCuAl4(SO4)(OH)12 · 3H2OMon. 2 : P21
7.DD.75NickelalumiteNiAl4(SO4)(OH)12(H2O)3Mon. 2/m
7.DD.75KyrgyzstaniteZnAl4(SO4)(OH)12 · 3H2OMon. 2/m
7.DD.80GuarinoiteZn6(SO4)(OH)10 · 5H2OHex.
7.DD.80Schulenbergite(Cu,Zn)7(SO4)2(OH)10 · 3H2OTrig. 3
7.DD.80ThérÚsemagnaniteNaCo4(SO4)(OH)6Cl · 6H2OTrig. 3 : P3
7.DD.80UM1992-30-SO:CCuHZn(Zn,Cu)7(SO4,CO3)2(OH)10 · 3H2OTrig. 3 : P3
7.DD.85MontetrisaiteCu6(SO4)(OH)10 · 2H2OOrth. mm2 : Cmc21

Other InformationHide

Notes:
Dehydrates to woodwardite in a dry atmosphere, but can be re-hydrated by immersion 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 HydrowoodwarditeHide

References for HydrowoodwarditeHide

Localities for HydrowoodwarditeHide

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 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.
Bolivia
 
  • Oruro
    • PantaleĂłn Dalence Province
      • Huanuni
Cacho et al. (2019)
FĂ€rber (n.d.)
France
 
  • Occitanie
    • Aude
      • Carcassonne
        • Salsigne
EDS by Vincent Bourgoin - Jean Wyart ...
Germany
 
  • North Rhine-Westphalia
    • Arnsberg
      • Siegen-Wittgenstein
        • Hilchenbach
          • MĂŒsen
Der Aufschluss 2000 (2)
  • Saxony
    • Erzgebirgskreis
      • GrĂŒnhain-Beierfeld
        • Beierfeld
Witzke (1999)
      • Königswalde
Witzke (1999)
      • Marienberg
        • Lauta
Hajek (2010)
      • Wolkenstein
Witzke (1999)
    • SĂ€chsische Schweiz-Osterzgebirge
      • GlashĂŒtte
        • BĂ€renhecke
Witzke (1999)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion Mining District
          • Agios Konstantinos (Kamariza)
            • Kamariza Mines (Kamareza Mines)
          • Lophos
            • Agrileza mines
90. +1 other reference
Italy
 
  • Aosta Valley
    • Saint-Marcel
Tumiati et al. (2008)
Tumiati et al. (2008)
  • Liguria
    • Genoa
      • Sestri Levante
Carbone (2008)
  • Sardinia
    • South Sardinia Province
      • Nuxis
        • Monte Tamara mining area
Lecca G.C. et al. (2022)
  • Trentino-Alto Adige (Trentino-South Tyrol)
    • Trento Province (Trentino)
      • Canal San Bovo
        • Vanoi Valley
          • Pralongo
Conedera M. et al. (2016)
      • Roncegno Terme
Bortolozzi et al. (2013)
Japan
 
  • Shimane Prefecture
    • Ochi District
Ohe Rikosha specimens +1 other reference
Portugal
 
  • Vila Real
    • Sabrosa
      • Souto Maior
Alves (2017)
Alves (2017)
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