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Zincowoodwardite
A valid IMA mineral species
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About Zincowoodwardite
Formula:
Zn1-xAlx(OH)2[SO4]x/2 · nH2O
(x < 0.5, n < 3x/2)
Colour:
Pale bluish to bluish-white
Lustre:
Waxy
Hardness:
1
Specific Gravity:
2.71 (Calculated)
Crystal System:
Trigonal
Member of:
Name:
Named as the zinc analogue of woodwardite. The species woodwardite itself was named after Samuel Pickworth Woodward (17 September 1821 – 11 July 1865), English naturalist and geologist. In 1845, S. P. Woodward became the professor of geology and natural history in the Royal Agricultural College, Cirencester. In 1848, he was appointed assistant in the department of geology and mineralogy in the British Museum. He proposed the term Bernician Series for the lower portion of the Carboniferous System, below the Millstone Grit.
The Zn analogue of Woodwardite. Chemically similar to glaucocerinite.
A hydrated basic sulfate with the Hydrotalcite structure. The formula was stated as a compound hydroxide-hydrated sulfate in the Lapis article, but is restated here to conform with the formula for Woodwardite.
The 3R and 1T polytypes commonly are intergrown.
Compare 'UM1985-07-OH:AlCuSZn' - close in terms of chemistry and PXRD.
A hydrated basic sulfate with the Hydrotalcite structure. The formula was stated as a compound hydroxide-hydrated sulfate in the Lapis article, but is restated here to conform with the formula for Woodwardite.
The 3R and 1T polytypes commonly are intergrown.
Compare 'UM1985-07-OH:AlCuSZn' - close in terms of chemistry and PXRD.
Unique Identifiers
Mindat ID:
10811
Long-form identifier:
mindat:1:1:10811:3
Similar Names
| Zincowoodwardit-1T | A synonym of 'Zincowoodwardite-1T' |
| Zincowoodwardit-3R | A synonym of 'Zincowoodwardite-3R' |
IMA Classification of Zincowoodwardite
Approved
IMA Formula:
Zn2+1-xAlx(OH)2(S6+O4)x/2·nH2O (x=0.32-0.50)
Approval year:
1998
First published:
2000
Classification of Zincowoodwardite
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
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 Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Zwwd | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Zincowoodwardite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Zincowoodwardite
Waxy
Transparency:
Translucent
Colour:
Pale bluish to bluish-white
Streak:
White to bluish-white
Hardness:
1 on Mohs scale
Tenacity:
Sectile
Cleavage:
None Observed
Not discernable
Not discernable
Density:
2.71 g/cm3 (Calculated)
Optical Data of Zincowoodwardite
Type:
Uniaxial
Chemistry of Zincowoodwardite
Mindat Formula:
Zn1-xAlx(OH)2[SO4]x/2 · nH2O
(x < 0.5, n < 3x/2)
(x < 0.5, n < 3x/2)
Crystallography of Zincowoodwardite
Polytype:
Formula:
Crystal System:
Class (H-M)
Space Group:
Space Group Setting:
Cell Parameters:
Ratio:
Unit Cell Volume (calc):
Z:
Comment:
| Zincowoodwardite-1T | Zincowoodwardite-3R |
|---|---|
| Zn1-xAlx(OH)2[SO4]x/2 · nH2O | Zn1-xAlx(OH)2[SO4]x/2 · nH2O |
| Trigonal | Trigonal |
| 3 - Rhombohedral | 3m(32/m) - Hexagonal Scalenohedral |
| P3 | R3m |
| R3m | |
| a = 3.064(4) Å, c = 8.85(2) Å | a = 3.065(1) Å, c = 25.42(2) Å |
| a:c = 1 : 2.888 | a:c = 1 : 8.294 |
| V 71.95 ų (Calculated from Unit Cell) | V 206.81 ų (Calculated from Unit Cell) |
| 1 | 3 |
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
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Display Options
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0014908 | Zincowoodwardite | Witzke T, Raade G (2000) Zincowoodwardite, [Zn1-x Alx(OH)2][(SO4)x/2(H2O)n], a new mineral of the hydrotalcite group Neues Jahrbuch fur Mineralogie, Monatshefte 2000 455-465 | 2000 | Hilarion mine, Kamariza, near Laurion, Greece | 0 | 293 | |
| 0014907 | Zincowoodwardite | Witzke T, Raade G (2000) Zincowoodwardite, [Zn1-x Alx(OH)2][(SO4)x/2(H2O)n], a new mineral of the hydrotalcite group Neues Jahrbuch fur Mineralogie, Monatshefte 2000 455-465 | 2000 | Hilarion mine, Kamariza, near Laurion, Greece | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|
Comments:
See polytypes
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47b : [Sulfates and sulfites] |
Type Occurrence of Zincowoodwardite
Co-Type Localities:
General Appearance of Type Material:
Botryoidal crusts of tabular crystals (5 to 10 µm).
Place of Conservation of Type Material:
The Mineral Collection, Bergakademie, Freiberg, Germany, and the Natural History Museum, Vienna, Austria (H 858, G 2172).
Associated Minerals at Type Locality:
Synonyms of Zincowoodwardite
Other Language Names for Zincowoodwardite
Relationship of Zincowoodwardite to other Species
Member of:
Other Members of Woodwardite Group:
| Honessite | (Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2O | Trig. |
| Woodwardite | Cu1-xAlx(OH)2(SO4)x/2 · nH2O | Trig. 3m(32/m) : R3m |
Common Associates
Associations Based on Photo Data:
| 20 photos of Zincowoodwardite associated with Serpierite | Ca(Cu2+,Zn2+)4(S6+O4)2(OH)6 · 3H2O |
| 4 photos of Zincowoodwardite associated with Ktenasite | ZnCu4(SO4)2(OH)6 · 6H2O |
| 2 photos of Zincowoodwardite associated with Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| 2 photos of Zincowoodwardite associated with Woodwardite | Cu1-xAlx(OH)2(SO4)x/2 · nH2O |
| 1 photo of Zincowoodwardite associated with Parnauite | Cu9(AsO4)2(SO4)(OH)10 · 7H2O |
| 1 photo of Zincowoodwardite associated with Cuprite | Cu2O |
| 1 photo of Zincowoodwardite associated with Šlikite | Zn2Mg(CO3)2(OH)2 · 4H2O |
| 1 photo of Zincowoodwardite associated with Zaccagnaite | Zn4Al2(OH)12[CO3] · 3H2O |
| 1 photo of Zincowoodwardite associated with Hydrokenoralstonite | Na0.5(Al,Mg)2(F,OH)6 · H2O |
Related Minerals - Strunz-mindat Grouping
| 7.DD. | Asagiite | NiCu4(SO4)2(OH)6 · 6H2O |
| 7.DD.05 | Felsőbányaite | Al4(SO4)(OH)10 · 4H2O |
| 7.DD.07 | Llantenesite | Cu6Al[SeO4](OH)12Cl · 3H2O |
| 7.DD.10 | Langite | Cu4(SO4)(OH)6 · 2H2O |
| 7.DD.10 | Fehrite | MgCu4(SO4)2(OH)6 · 6H2O |
| 7.DD.10 | Posnjakite | Cu4(SO4)(OH)6 · H2O |
| 7.DD.10 | Wroewolfeite | Cu4(SO4)(OH)6 · 2H2O |
| 7.DD.10 | Gobelinite | CoCu4(SO4)2(OH)6 · 6H2O |
| 7.DD.15 | Kobyashevite | Cu5(SO4)2(OH)6 · 4H2O |
| 7.DD.15 | Spangolite | Cu6Al(SO4)(OH)12Cl · 3H2O |
| 7.DD.15 | 'Unnamed (Dimorph of Devilline)' | CaCu4(SO4)2(OH)6 · 3H2O |
| 7.DD.20 | Ktenasite | ZnCu4(SO4)2(OH)6 · 6H2O |
| 7.DD.25 | Christelite | Cu2Zn3(SO4)2(OH)6 · 4H2O |
| 7.DD.30 | Edwardsite | Cu3Cd2(SO4)2(OH)6 · 4H2O |
| 7.DD.30 | Niedermayrite | CdCu4(SO4)2(OH)6 · 4H2O |
| 7.DD.30 | Serpierite | Ca(Cu2+,Zn2+)4(S6+O4)2(OH)6 · 3H2O |
| 7.DD.30 | Campigliaite | Mn2+Cu4(SO4)2(OH)6 · 4H2O |
| 7.DD.30 | Orthoserpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
| 7.DD.30 | Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
| 7.DD.35 | Shigaite | Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| 7.DD.35 | Zincaluminite | (Zn1-xAlx)(SO4)x/2(OH)2 · nH2O |
| 7.DD.35 | Natroglaucocerinite | Zn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| 7.DD.35 | Hydrowoodwardite | (Cu1-xAlx)(OH)2[SO4]x/2 · nH2O |
| 7.DD.35 | Honessite | (Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2O |
| 7.DD.35 | Carrboydite | (Ni1-xAlx)(SO4)x/2(OH)2 · nH2O |
| 7.DD.35 | Glaucocerinite | (Zn1-xAlx)(OH)2(SO4)x/2 · nH2O |
| 7.DD.35 | Wermlandite | Mg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2O |
| 7.DD.35 | Nikischerite | Fe2+6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| 7.DD.35 | Hydrohonessite | (Ni1-xFe3+x)(OH)2(SO4)x/2 · nH2O |
| 7.DD.35 | Woodwardite | Cu1-xAlx(OH)2(SO4)x/2 · nH2O |
| 7.DD.35 | Motukoreaite | Mg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O |
| 7.DD.35 | Mountkeithite | [(Mg1-xFe3+x)(OH)2][SO4]x/2 · nH2O |
| 7.DD.40 | Lawsonbauerite | (Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2O |
| 7.DD.40 | Torreyite | (Mg,Mn2+)7◻2Mn2+2Zn4(SO4)2(OH)22 · 8H2O |
| 7.DD.40 | Isselite | Cu6(SO4)(OH)10(H2O)4 · H2O |
| 7.DD.45 | Mooreite | Mg9◻2Mn2Zn4(SO4)2(OH)26 · 8H2O |
| 7.DD.45 | Hodgesmithite | (Cu,Zn)6Zn(SO4)2(OH)10 · 3H2O |
| 7.DD.47 | Lahnsteinite | Zn4(SO4)(OH)6 · 3H2O |
| 7.DD.50 | Namuwite | Zn4(SO4)(OH)6 · 4H2O |
| 7.DD.50 | Minohlite | (Cu,Zn)7(SO4)2(OH)10 · 8H2O |
| 7.DD.52 | Lauraniite | Cu6Cd2(SO4)2(OH)12 · 5H2O |
| 7.DD.55 | Bechererite | Zn7Cu(OH)13[(SiO(OH)3(SO4)] |
| 7.DD.60 | Ramsbeckite | (Cu,Zn)15(SO4)4(OH)22 · 6H2O |
| 7.DD.65 | Vonbezingite | Ca6Cu3(SO4)3(OH)12 · 2H2O |
| 7.DD.70 | Redgillite | Cu6(SO4)(OH)10 · H2O |
| 7.DD.75 | Nickelalumite | NiAl4(SO4)(OH)12(H2O)3 |
| 7.DD.75 | Kyrgyzstanite | ZnAl4(SO4)(OH)12 · 3H2O |
| 7.DD.75 | Chalcoalumite | CuAl4(SO4)(OH)12 · 3H2O |
| 7.DD.80 | Schulenbergite | (Cu,Zn)7(SO4)2(OH)10 · 3H2O |
| 7.DD.80 | 'UM1992-30-SO:CCuHZn' | (Zn,Cu)7(SO4,CO3)2(OH)10 · 3H2O |
| 7.DD.80 | Thérèsemagnanite | NaCo4(SO4)(OH)6Cl · 6H2O |
| 7.DD.80 | Guarinoite | Zn6(SO4)(OH)10 · 5H2O |
| 7.DD.85 | Montetrisaite | Cu6(SO4)(OH)10 · 2H2O |
Other Information
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 Zincowoodwardite
mindat.org URL:
https://www.mindat.org/min-10811.html
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References for Zincowoodwardite
Reference List:
Mandarino, Joseph A. (2001) New minerals. The Canadian Mineralogist, 39 (5) 1473-1502 doi:10.2113/gscanmin.39.5.1473
Localities for Zincowoodwardite
Showing 19 localities.
Locality List
- 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).
All localities listed without proper references should be considered as questionable.
France | |
| De Ascencao Guedes R. (2001) |
| Collection and Collected by (Font Philippe) |
| J.-P. Bourgarel collection. EDS by the ... |
| Chollet pascal Collection - collected ... |
Germany | |
| 58. +1 other reference |
| Möhn et al. (10/2020) |
Greece (TL) | |
| Witzke et al. (2000) |
| Witzke et al. (2000) |
| 90. +1 other reference |
Italy | |
| Gian Claudio Lecca et al. (2024) |
| Ciriotti M.E. and Blass.G. (2010) |
| EDX analysis. |
| Gasparetto et al. (2026) |
Portugal | |
| Alves (2017) |
| Alves (2017) | |
Slovakia | |
| Števko M. (2014) |
Spain | |
| Georges FAVREAU collection & EDX ... |
Switzerland | |
| [Zincowoodwardite-1T] Ansermet (2012) |
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Juraj vein, Hodruša-Hámre mines, Hodruša-Hámre, Žarnovica District, Banská Bystrica Region, Slovakia