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Hydrowoodwardite

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Big Photo

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

Show Hydrowoodwardite Photos (7)



Formula:
(Cu,Al)
 
9
(SO
 
4
)
 
2
(OH)
 
18
 · nH
 
2
O
System:TrigonalColour:blue, greenish-blue, ...
Lustre:Vitreous
Member of:Hydrotalcite Group
Name:Named as the higher hydrated analogue of woodwardite.


Hydrotalcite Group.

Slowly and reversibly dehydrates to woodwardite.

Compare also glaucocerinite.

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 District, 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
Comment:Probable space group R-3m.
X-Ray Powder Diffraction:
d-spacingIntensity
10.5 (100)
5.26 (17)
3.50 (6)
2.60 (5b)
2.46 (2b)
2.23 (2b)
1.524 (4b)

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,Al)
 
9
(SO
 
4
)
 
2
(OH)
 
18
 · nH
 
2
O
Essential elements:Cu, H, O, S
All elements listed in formula:Al, Cu, H, O, S

Relationship of Hydrowoodwardite to other Species

Member of:Hydrotalcite Group
Other Members of Group:

- +
Desautelsite
Mg
 
6
Mn
3+
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
Hydrotalcite
Mg
 
6
Al
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
Iowaite
Mg
 
6
Fe
3+
2
(OH)
 
16
Cl
 
2
 · 4H
 
2
O
Pyroaurite
Mg
 
6
Fe
3+
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
Stichtite
Mg
 
6
Cr
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
Takovite
Ni
 
6
Al
 
2
(CO
 
3
)(OH)
 
16
 · 4H
 
2
O
Wermlandite
Mg
 
7
(Ca,Mg)(Al,Fe)
 
2
(SO
 
4
)
 
2
(OH)
 
18
 · 12H
 
2
O
Woodwardite
Cu
 
4
Al
 
2
(SO
 
4
)(OH)
 
12
 · 2-4H
 
2
O
Zincowoodwardite
Zn
 
1-x
Al
 
x
(SO
 
4
)
 
x/2
(OH)
 
2
 · nH
 
2
O (x=0.32-0.50)
Related Minerals - Nickel-Strunz Grouping):

- +
7.DD.05Felsőbányaite
Al
 
4
(SO
 
4
)(OH)
 
10
 · 4H
 
2
O
7.DD.10Langite
Cu
 
4
(SO
 
4
)(OH)
 
6
 · 2H
 
2
O
7.DD.10Posnjakite
Cu
 
4
(SO
 
4
)(OH)
 
6
 · H
 
2
O
7.DD.10Wroewolfeite
Cu
 
4
(SO
 
4
)(OH)
 
6
 · 2H
 
2
O
7.DD.15Spangolite
Cu
 
6
Al(SO
 
4
)(OH)
 
12
Cl · 3H
 
2
O
7.DD.20Ktenasite
Zn(Cu,Zn)
 
4
(SO
 
4
)
 
2
(OH)
 
6
 · 6H
 
2
O
7.DD.25Christelite
Cu
 
2
Zn
 
3
(SO
 
4
)
 
2
(OH)
 
6
 · 4H
 
2
O
7.DD.30Campigliaite
Mn
2+
 
Cu
 
4
(SO
 
4
)
 
2
(OH)
 
6
 · 4H
 
2
O
7.DD.30Devilline
CaCu
 
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
(SO
 
4
)
 
2
(OH)
 
6
 · 4H
 
2
O
7.DD.30Edwardsite
Cu
 
3
Cd
 
2
(SO
 
4
)
 
2
(OH)
 
6
·4H
 
2
O
7.DD.35Carrboydite
(Ni,Cu)
 
14
Al
 
9
(SO
 
4
,CO
 
3
)
 
6
(OH)
 
43
 · 7H
 
2
O
7.DD.35Glaucocerinite
(Zn,Cu)
 
10
Al
 
6
(SO
 
4
)
 
3
(OH)
 
32
 · 18H
 
2
O
7.DD.35Honessite
Ni
 
6
Fe
3+
2
(SO
 
4
)(OH)
 
16
 · 4H
 
2
O
7.DD.35Hydrohonessite
Ni
 
6
Fe
3+
2
(SO
 
4
)(OH)
 
16
 · 7H
 
2
O
7.DD.35Motukoreaite
NaMg
 
19
Al
 
12
(SO
 
4
)
 
4
(CO
 
3
)
 
6.5
(OH)
 
54
 · 28H
 
2
O
7.DD.35Mountkeithite
(Mg,Ni)
 
11
(Fe
3+
 
,Cr
3+
 
,Al)
 
3
(SO
 
4
,CO
 
3
)
 
3.5
(OH)
 
24
 · 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
 · 12H
 
2
O
7.DD.35Woodwardite
Cu
 
4
Al
 
2
(SO
 
4
)(OH)
 
12
 · 2-4H
 
2
O
7.DD.35Zincaluminite
Zn
 
6
Al
 
6
(SO
 
4
)
 
2
(OH)
 
16
 · 5H
 
2
O
7.DD.35Zincowoodwardite
Zn
 
1-x
Al
 
x
(SO
 
4
)
 
x/2
(OH)
 
2
 · nH
 
2
O (x=0.32-0.50)
7.DD.35Natroglaucocerinite
Na
 
x
Zn
 
8-y
Al
 
y
(SO
 
4
)
 
(x+y)/2
(OH)
 
16
 · 6H
 
2
O
7.DD.35Nikischerite
NaFe
2+
6
Al
 
3
(SO
 
4
)
 
2
(OH)
 
18
 · 12H
 
2
O
7.DD.40Lawsonbauerite
(Mn
2+
 
,Mg)
 
9
Zn
 
4
(SO
 
4
)
 
2
(OH)
 
22
 · 8H
 
2
O
7.DD.40Torreyite
(Mg,Mn
2+
 
)
 
9
Zn
 
4
(SO
 
4
)
 
2
(OH)
 
22
 · 8H
 
2
O
7.DD.45Mooreite
(Mg,Zn,Mn
2+
 
)
 
15
(SO
 
4
)
 
2
(OH)
 
26
 · 8H
 
2
O
7.DD.50Namuwite
(Zn,Cu)
 
4
(SO
 
4
)(OH)
 
6
 · 4H
 
2
O
7.DD.55Bechererite
(Zn,Cu)
 
6
Zn
 
2
(SO
 
4
,HSiO
 
4
)
 
2
(OH)
 
12
7.DD.60Ramsbeckite
(Cu,Zn)
 
15
(SO
 
4
)
 
4
(OH)
 
22
 · 6H
 
2
O
7.DD.65Vonbezingite
Ca
 
6
Cu
 
3
(SO
 
4
)
 
3
(OH)
 
12
 · 2H
 
2
O
7.DD.70Redgillite
Cu
 
6
(SO
 
4
)(OH)
 
10
 · H
 
2
O
7.DD.75Chalcoalumite
CuAl
 
4
(SO
 
4
)(OH)
 
12
 · 3H
 
2
O
7.DD.75Nickelalumite
(Ni,Cu)Al
 
4
(SO
 
4
,(NO
 
3
)
 
2
)(OH)
 
12
 · 3H
 
2
O
7.DD.75Kyrgyzstanite
ZnAl
 
4
(SO
 
4
)(OH)
 
12
·3H
 
2
O
7.DD.80Guarinoite
(Zn,Co,Ni)
 
6
(SO
 
4
)(OH,Cl)
 
10
 · 5H
 
2
O
7.DD.80Schulenbergite
(Cu,Zn)
 
7
(SO
 
4
,CO
 
3
)
 
2
(OH)
 
10
 · 3H
 
2
O
7.DD.80Thérèsemagnanite
(Co,Zn,Ni)
 
6
(SO
 
4
)(OH,Cl)
 
10
 · 8H
 
2
O
7.DD.80UM1992-30-SO:CCuHZn
(Zn,Cu)
 
7
(SO
 
4
,CO
 
3
)
 
2
(OH)
 
10
 · 3H
 
2
O
7.DD.85Montetrisaite
Cu
 
6
(SO
 
4
)(OH)
 
10
 · 2H
 
2
O

Other Names for Hydrowoodwardite

Synonyms:
IMA1996-038
Other Languages:
German:Hydrowoodwardit
Spanish: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.

Internet Links for Hydrowoodwardite

Search Engines:
  • Look for Hydrowoodwardite on Google
  • Look for Hydrowoodwardite images on Google
    • External Links:
  • Look for Hydrowoodwardite on Webmineral
  • Look for Hydrowoodwardite on Athena Mineralogy
  • Look for Hydrowoodwardite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Hydrowoodwardite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • The Arkenstone - Fine Minerals
  • Search for Hydrowoodwardite from all mineral dealers at minfind.com
  • Fine Minerals from Weinrich Minerals, Inc.
  • Find Hydrowoodwardite on www.crystalclassics.co.uk
  • Buy RARE Minerals from Rocks of Africa
  • Rare and Unusual minerals at Mineralogical Research Company
  • Pricedownminerals.com - Reverse Auctions and Shop
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    • Localities for Hydrowoodwardite

    The 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.
    Hide Locality List
    (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.
    Bolivia
     
    • Oruro Department
      • Dalence Province
        • Huanuni
    		Gunnar Farber specimens (originally with a MIKON "nikischerite" label).
    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
          • Beierfeld
    		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] (Kamariza)
            • Kamariza Mines (Kamareza Mines)
              • Hilarion area
    		No reference listed
          • Sounion Area
            • Agia Varvara Mines (St Barbara Mines)
    		No reference listed
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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