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Hydrowoodwardite

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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.


Hide all sections | Show all sections

Classification of HydrowoodwarditeHide

Approved
Approval Year:
1996
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

Physical Properties of HydrowoodwarditeHide

Vitreous
Transparency:
Translucent
Colour:
blue, greenish-blue, pale blue
Streak:
pale blue
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
2.33 g/cm3 (Measured)    

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

Chemical Properties of HydrowoodwarditeHide

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

( x < 0.5, n > 3x/2)
IMA Formula:
(Cu1-xAlx)(SO4)x/2(OH)2 · nH2O (x < 0.5, n > 3x/2)

Crystallography of HydrowoodwarditeHide

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Cell Parameters:
a = 3.07 Å, c = 31.9 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 (100)
5.26 (17)
3.50 (6)
2.60 (5b)
2.46 (2b)
2.23 (2b)
1.524 (4b)

Type Occurrence of HydrowoodwarditeHide

Synonyms of HydrowoodwarditeHide

Other Language Names for HydrowoodwarditeHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Woodwardite3 photos of Hydrowoodwardite associated with Woodwardite on mindat.org.
Carbonatecyanotrichite1 photo of Hydrowoodwardite associated with Carbonatecyanotrichite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.DD.05FelsőbányaiteAl4(SO4)(OH)10 · 4H2OMon. 2 : P21
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.15SpangoliteCu6Al(SO4)(OH)12Cl · 3H2OTrig. 3m : P3 1c
7.DD.20KtenasiteZn(Cu,Zn)4(SO4)2(OH)6 · 6H2OMon.
7.DD.25ChristeliteCu2Zn3(SO4)2(OH)6 · 4H2OTric.
7.DD.30CampigliaiteMn2+Cu4(SO4)2(OH)6 · 4H2OMon.
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)(OH)2][SO4]x/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.
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.
7.DD.40Lawsonbauerite(Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
7.DD.40Torreyite(Mg,Mn2+)72Mn2+2Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
7.DD.45MooreiteMg92Mn2Zn4(SO4)2(OH)26 · 8H2OMon. 2/m : P2/b
7.DD.50NamuwiteZn4(SO4)(OH)6 · 4H2OTrig. 3 : P3
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.75Nickelalumite(Ni,Cu)Al4(SO4,(NO3)2)(OH)12 · 3H2OMon.
7.DD.75KyrgyzstaniteZnAl4(SO4)(OH)12·3H2OMon.
7.DD.80GuarinoiteZn6(SO4)(OH)10 · 5H2OHex.
7.DD.80Schulenbergite(Cu,Zn)7(SO4)2(OH)10 · 3H2OTrig.
7.DD.80ThérèsemagnaniteNaCo4(SO4)(OH)6Cl·6H2OHex.
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

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 HydrowoodwarditeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Witzke, T. (1999), Hydrowoodwardite, a new mineral of the hydrotalcite group from Königswalde near Annaberg, Saxony/Germany and other localities.- Neues Jahrbuch für Mineralogie, Monatshefte (1999): 75-86.
Mills, S.J., Christy, A.G., Genin, J.-M.R., Kameda, T., Colombo, F. (2012): Nomenclature of the hydrotalcite supergroup: natural layered double hydroxides. Mineralogical Magazine, 76, 1289-1336.

Internet Links 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 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.
Bolivia
 
  • Oruro Department
    • Dalence Province
      • Huanuni
Gunnar Färber specimens (originally with a MIKON "nikischerite" label).
France
 
  • Occitanie
    • Aude
      • Carcassonne
        • Mas-Cabardès
          • Salsigne
EDS by Vincent Bourgoin - Jean Wyart association
Germany
 
  • North Rhine-Westphalia
    • Siegerland
      • Müsen
Der Aufschluss 2000(2), 71-123
  • Saxony
    • Erzgebirge
      • Annaberg District
        • Königswalde
T. Witzke (1999) Neues Jahrbuch für Mineralogie, Monatshefte, 75-86
      • Glashütte
        • Bärenhecke
T. Witzke (1999) Neues Jahrbuch für Mineralogie, Monatshefte, 75-86
      • Marienberg District
        • Lauta
Hajek, W. (2010): Kristallwelten Marienberg. Weise Verlag, München.
        • Wolkenstein
T. Witzke (1999) Neues Jahrbuch für Mineralogie, Monatshefte, 75-86
      • Schwarzenberg District
        • Grünhain-Beierfeld
          • Beierfeld
T. Witzke (1999) Neues Jahrbuch für Mineralogie, Monatshefte, 75-86
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
          • Kamariza Mines (Kamareza Mines)
            • Hilarion area
No reference listed
        • Sounion Area
          • Agia Varvara Mines (St Barbara Mines)
No reference listed
Italy
 
  • Aosta Valley
    • Saint-Marcel
Tumiati, S., Godard, G., Masciocchi, N., Martin, S., Monticelli, D. (2008): Environmental factors controlling the precipitation of Cu-bearing hydrotalcite-like compounds from mine waters. The case of the "Eve verda" spring (Aosta Valley, Italy). European Journal of Mineralogy, 20, 73-94.
Tumiati, S., Godard, G., Masciocchi, N., Martin, S., Monticelli, D. (2008): Environmental factors controlling the precipitation of Cu-bearing hydrotalcite-like compounds from mine waters. The case of the "Eve verda" spring (Aosta Valley, Italy). European Journal of Mineralogy, 20, 73-94.
  • Liguria
    • Genova Province
      • Sestri Levante
Carbone, C. (2008). Crystallochemical and minerogenetic study of oxide and oxy-hydroxides related to AMD (acid mine drainage) processes in Libiola mine (Sestri Levante). Plinius No. 34
  • Trentino-Alto Adige (Trentino-Südtirol)
    • Trento Province
      • Canal San Bovo
        • Vanoi Valley
          • Pralongo
Conedera M., Bursi Gandolfi N., Ferretti P., Gualtieri A., Rocchetti I. (2016): Miniera di Pralongo. Una mineralizzazione cuprifera presso Canal San Bovo (Valle del Vanoi, Trento): Riv. Mineral. Ital., 50, 2 (2-2016), 90-119.
      • Valsugana
        • Roncegno
-Bortolozzi G., Blass G., Boscardin M., Rocchetti I. and Ferretti P. (2013): La Miniera di Cinquevalli (Valsugana, Trentino-Alto Adige): aggiornamento sulle specie accertate negli ultimi anni. Studi Trent. Sci. Nat., 93, pagg. 149-165.
Japan
 
  • Honshu Island
    • Chugoku region
      • Shimane Prefecture
        • Ohchi-gun
Ohe Rikosha specimens; and specimens on sale at Tokyo (TIMA) show, 2009.
Portugal
 
  • Vila Real District
    • Sabrosa
      • Souto Maior
Alves, P. (2017) The Mining District of Vale das Gatas, Sabrosa, Portugal. Mineral Up Vol. IV, nº5, 8-60.
Alves, P. (2017) The Mining District of Vale das Gatas, Sabrosa, Portugal. Mineral Up Vol. IV, nº5, 8-60.
Mineral and/or Locality  
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