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Hydrowoodwardite

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St Christoph Mine, Bärenhecke, Glashütte, Erzgebirge, Saxony, Germany
© Thomas Witzke

Show Hydrowoodwardite Photos (4)
Formula:
Cu
 
1-x
Al
 
x
[(OH)
 
2
|(SO
 
4
)
 
x/2
] · nH
 
2
O
System:TrigonalColour:blue, greenish-blue, ...
Lustre:Vitreous
Name:Named as the higher hydrated analogue of woodwardite.
This page provides mineralogical data about Hydrowoodwardite.

Classification of Hydrowoodwardite

IMA status:Approved 1996
Strunz 8th edition ID:6/D.08-42
Nickel-Strunz 10th (pending) edition ID: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
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Type Occurrence of Hydrowoodwardite

Type Locality:St Briccius Mine, Königswalde, Annaberg-Buchholz, Erzgebirge, Saxony, Germany

Physical Properties of Hydrowoodwardite

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

Crystallography of Hydrowoodwardite

Crystal System:Trigonal
Class (H-M):3m (3 2/m) - Hexagonal Scalenohedral
Space Group:R3m (R3 2/m)
Cell Parameters:a = 3.07Å, c = 31.9Å
Ratio:a:c = 1 : 10.391
Unit Cell Volume:V 260 ų
Z:3

Optical Data of Hydrowoodwardite

Type:Uniaxial (+)
RI values: nω = 1.549 nε = 1.565
Maximum Birefringence:δ = 0.016

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low

Chemical Properties of Hydrowoodwardite

Formula:
Cu
 
1-x
Al
 
x
[(OH)
 
2
|(SO
 
4
)
 
x/2
] · nH
 
2
O
Essential elements:Al, Cu, H, O, S
All elements listed in formula:Al, Cu, H, O, S

Relationship of Hydrowoodwardite to other Species

Related Minerals - Nickel-Strunz Grouping):
7.DD.05Felsőbányaite
Al
 
4
[(OH)
 
10
|SO
 
4
] · 5H
 
2
O
7.DD.05Hydrobasaluminite
Al
 
4
[(OH)
 
10
|SO
 
4
] · 12-36H
 
2
O
7.DD.05Zaherite
Al
 
12
[(OH)
 
26
|(SO
 
4
)
 
5
] · 20H
 
2
O
7.DD.10Guarinoite
(Zn,Co,Ni)
 
6
[(OH,Cl)
 
10
|SO
 
4
] · 5H
 
2
O
7.DD.10Langite
Cu
 
4
[(OH)
 
6
|SO
 
4
] · 2H
 
2
O
7.DD.10Posnjakite
Cu
 
4
[(OH)
 
6
|SO
 
4
] · H
 
2
O
7.DD.10Schulenbergite
(Cu,Zn)
 
7
[(OH)
 
10
|(SO
 
4
,CO
 
3
)
 
2
] · 3H
 
2
O
7.DD.10Wroewolfeite
Cu
 
4
[(OH)
 
6
|SO
 
4
] · 2H
 
2
O
7.DD.10Thérèsemagnanite
(Co,Zn,Ni)
 
6
(SO
 
4
)(OH,Cl)
 
10
·8H
 
2
O
7.DD.10Montetrisaite
Cu
 
6
(SO
 
4
)(OH)
 
10
·H
 
2
O
7.DD.15Spangolite
Cu
 
6
Al[(OH)
 
12
|Cl|SO
 
4
] · 3H
 
2
O
7.DD.20Ktenasite
(Cu,Zn)
 
5
[(OH)
 
6
|(SO
 
4
)
 
2
] · 6H
 
2
O
7.DD.25Christelite
Cu
 
2
Zn
 
3
[(OH)
 
6
|(SO
 
4
)
 
2
] · 4H
 
2
O
7.DD.30Campigliaite
Mn
2+
 
Cu
 
4
[(OH)
 
6
|(SO
 
4
)
 
2
] · 4H
 
2
O
7.DD.30Devilline
CaCu
 
4
(SO
 
4
)
 
2
(OH)
 
6
·3H
 
2
O
7.DD.30Lautenthalite
PbCu
 
4
(SO
 
4
)
 
2
(OH)
 
6
·3H
 
2
O
7.DD.30Orthoserpierite
Ca(Cu,Zn)
 
4
(SO
 
4
)
 
2
(OH)
 
6
·3H
 
2
O
7.DD.30Serpierite
Ca(Cu,Zn)
 
4
(SO
 
4
)
 
2
(OH)
 
6
·3H
 
2
O
7.DD.30Niedermayrite
CdCu
 
4
[(OH)
 
6
|(SO
 
4
)
 
2
] · 4H
 
2
O
7.DD.35Carrboydite
(Ni,Cu)
 
14
Al
 
9
[(OH)
 
43
|(SO
 
4
,CO
 
3
)
 
6
] · 7H
 
2
O
7.DD.35Glaucocerinite
(Zn,Cu)
 
10
Al
 
6
[(OH)
 
32
|(SO
 
4
)
 
3
] · 18H
 
2
O
7.DD.35Honessite
Ni
 
6
Fe
3+
2
[(OH)
 
16
|SO
 
4
] · 4H
 
2
O
7.DD.35Hydrohonessite
Ni
 
6
Fe
3+
2
[(OH)
 
16
|SO
 
4
] · 7H
 
2
O
7.DD.35Motukoreaite
NaMg
 
19
Al
 
12
(CO
 
3
)
 
6.5
(SO
 
4
)
 
4
(OH)
 
54
·28H
 
2
O
7.DD.35Mountkeithite
(Mg,Ni)
 
11
(Fe
3+
 
,Cr
3+
 
,Al)
 
3
[(OH)
 
24
|(SO
 
4
,CO
 
3
)
 
3.5
] · 11H
 
2
O
7.DD.35Shigaite
Al
 
4
Mn
 
7
(SO
 
4
)
 
2
(OH)
 
22
·8H
 
2
O
7.DD.35Wermlandite
Mg
 
7
(Ca,Mg)(Al,Fe)
 
2
(SO
 
4
)
 
2
(OH)
 
18
(H
 
2
O)
 
12
7.DD.35Woodwardite
Cu
 
4
Al
 
2
[(OH)
 
12
|SO
 
4
] · 2-4H
 
2
O
7.DD.35Zincaluminite
Zn
 
6
Al
 
6
[(OH)
 
13
|SO
 
4
]
 
2
 · 5H
 
2
O
7.DD.35Zincowoodwardite
Zn
 
1-x
Al
 
x
(SO
 
4
)
 
x/2
(OH)
 
2
·nH
 
2
O (?)
7.DD.35Natroglaucocerinite
[(Zn,Cu)
 
5
Al
 
3
(OH)
 
16
][(SO
 
4
)
 
1.5
Na
 
1.5
(SO
 
4
)
 
0.75
(H
 
2
O)
 
9
]
7.DD.35Nikischerite
[AlFe
 
2
(OH)
 
6
]
 
3
(SO
 
4
)
 
2
Na(H
 
2
O)
 
6
·6H
 
2
O
7.DD.40Lawsonbauerite
(Mn
2+
 
,Mg)
 
9
Zn
 
4
[(OH)
 
11
|SO
 
4
]
 
2
 · 8H
 
2
O
7.DD.40Torreyite
(Mg,Mn
2+
 
)
 
9
Zn
 
4
[(OH)
 
11
|SO
 
4
]
 
2
 · 8H
 
2
O
7.DD.45Mooreite
(Mg,Zn,Mn
2+
 
)
 
15
[(OH)
 
13
|SO
 
4
]
 
2
 · 8H
 
2
O
7.DD.50Namuwite
(Zn,Cu)
 
4
[(OH)
 
6
|SO
 
4
] · 4H
 
2
O
7.DD.55Bechererite
(Zn,Cu)
 
6
Zn
 
2
[(OH)
 
12
|(SO
 
4
,HSiO
 
4
)
 
2
]
7.DD.60Ramsbeckite
(Cu,Zn)
 
15
[(OH)
 
22
|(SO
 
4
)
 
4
] · 6H
 
2
O
7.DD.65Vonbezingite
Ca
 
6
Cu
 
3
[(OH)
 
12
|(SO
 
4
)
 
3
] · 2H
 
2
O
7.DD.70Redgillite
Cu
 
6
[(OH)
 
10
|SO
 
4
] · H
 
2
O
7.DD.75Chalcoalumite
CuAl
 
4
[(OH)
 
12
|SO
 
4
] · 3H
 
2
O
7.DD.75Nickelalumite
(Ni,Cu)Al
 
4
[(OH)
 
12
|{SO
 
4
,(NO
 
3
)
 
2
}] · 3H
 
2
O
7.DD.75Kyrgyzstanite
ZnAl
 
4
(SO
 
4
)(OH)
 
12
·3H
 
2
O

Other Names for Hydrowoodwardite

Synonyms:
IMA1996-038
German names:
Hydrowoodwardit
Spanish names:
Hydrowoodwardita

Other Information

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

References for Hydrowoodwardite

Reference List: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.

Articles/Blogs about Hydrowoodwardite

Internet Links for Hydrowoodwardite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Hydrowoodwardite in the Natural History Museum (London) online catalogue
  • Hydrowoodwardite details from Handbook of Mineralogy (PDF)
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    Localities for Hydrowoodwardite

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Germany
     
    • North Rhine-Westphalia
      • Siegerland
        • Müsen
    		Der Aufschluss 2000(2), 71-123
    • Saxony
      • Erzgebirge
        • Annaberg-Buchholz
          • 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
          • Wolkenstein
    		T. Witzke (1999) Neues Jahrbuch für Mineralogie, Monatshefte, 75-86
        • Schwarzenberg District
          • Fürstenberg hill
    		T. Witzke (1999) Neues Jahrbuch für Mineralogie, Monatshefte, 75-86
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamareza; Kamariza)
            • Kamareza Mines
    		No reference listed
          • Sounion Area
            • Agia Varvara Mines (St Barbara Mines)
    		No reference listed
    Mineral and/or Locality
    Google
     
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