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Zincaluminite

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Formula:
Zn6Al6(SO4)2(OH)16 · 5H2O
Colour:
White, bluish-white, ...
Hardness:
2½ - 3
Name:
From its composition, containing ZINC plus ALUM (aluminium sulfate) and its similarity to aluminite.
A questionable mineral with undetermined X-ray powder pattern and unknown crystallography. Compare also zincowoodwardite.

As part of the recent re-evaluation of the nomenclature of the hydrotalcite supergroup (Mills et al., 2012), zincaluminite was confirmed to be a questionable species which needs further investigation.


Classification of Zincaluminite

Approved, 'Grandfathered' (first described prior to 1959), Questionable
First Published:
2012
6/D.08-100
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
31.2.3.1

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
2 : (AB)6(XO4)Zq·xH2O
25.5.9

25 : Sulphates
5 : Sulphates of Zn and Hg

Physical Properties of Zincaluminite

Diaphaneity (Transparency):
Translucent
Colour:
White, bluish-white, pale blue; colourless in transmitted light.
Hardness (Mohs):
2½ - 3
Density:
2.26 g/cm3 (Measured)    

Optical Data of Zincaluminite

Type:
Uniaxial (-)
RI values:
nω = 1.534 nε = 1.514
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Low
Comments:
Biaaxial + at times, with a small 2V.

Chemical Properties of Zincaluminite

Formula:
Zn6Al6(SO4)2(OH)16 · 5H2O
IMA Formula:
(Zn,Al)9(SO4)2(OH)18 · nH2O
Elements listed in formula:

Crystallography of Zincaluminite

Morphology:
Minute crystals as very thin hexagonal plates, forming crusts; tufts.

Type Occurrence of Zincaluminite

Associated Minerals at Type Locality:

Relationship of Zincaluminite to other Species

Other Members of Group:
Carrboydite[(Ni1-xAlx)(OH)2][SO4]x/2 · nH2O
Glaucocerinite(Zn1-xAlx)(OH)2(SO4)x/2 · nH2O
Hydrohonessite(Ni1-xFex3+)(OH)2[SO4]x/2 · nH2O
Mountkeithite[(Mg1-xFex3+)(OH)2][SO4]x/2 · nH2O
7.DD.05FelsőbányaiteAl4(SO4)(OH)10 · 4H2O
7.DD.10LangiteCu4(SO4)(OH)6 · 2H2O
7.DD.10PosnjakiteCu4(SO4)(OH)6 · H2O
7.DD.10WroewolfeiteCu4(SO4)(OH)6 · 2H2O
7.DD.15SpangoliteCu6Al(SO4)(OH)12Cl · 3H2O
7.DD.20KtenasiteZn(Cu,Zn)4(SO4)2(OH)6 · 6H2O
7.DD.25ChristeliteCu2Zn3(SO4)2(OH)6 · 4H2O
7.DD.30CampigliaiteMn2+Cu4(SO4)2(OH)6 · 4H2O
7.DD.30DevillineCaCu4(SO4)2(OH)6 · 3H2O
7.DD.30OrthoserpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
7.DD.30SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
7.DD.30NiedermayriteCdCu4(SO4)2(OH)6 · 4H2O
7.DD.30EdwardsiteCu3Cd2(SO4)2(OH)6·4H2O
7.DD.35Carrboydite[(Ni1-xAlx)(OH)2][SO4]x/2 · nH2O
7.DD.35Glaucocerinite(Zn1-xAlx)(OH)2(SO4)x/2 · nH2O
7.DD.35Honessite(Ni1-xFex3+)(OH)2[SO4]x/2 · nH2O
7.DD.35Hydrohonessite(Ni1-xFex3+)(OH)2[SO4]x/2 · nH2O
7.DD.35MotukoreaiteMg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O
7.DD.35Mountkeithite[(Mg1-xFex3+)(OH)2][SO4]x/2 · nH2O
7.DD.35ShigaiteMn6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O
7.DD.35WermlanditeMg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2O
7.DD.35WoodwarditeCu1-xAlx(OH)2[SO4]x/2 · nH2O
7.DD.35Hydrowoodwardite(Cu1-xAlx)(OH)2[SO4]x/2 · nH2O
7.DD.35ZincowoodwarditeZn1-xAlx(OH)2[SO4]x/2 · nH2O
7.DD.35NatroglaucoceriniteZn6Al3(OH)18[Na(H2O)6](SO4)2•6H2O
7.DD.35NikischeriteFe62+Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O
7.DD.40Lawsonbauerite(Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2O
7.DD.40Torreyite(Mg,Mn2+)72Mn22+Zn4(SO4)2(OH)22 · 8H2O
7.DD.45MooreiteMg92Mn2Zn4(SO4)2(OH)26 · 8H2O
7.DD.50NamuwiteZn4(SO4)(OH)6 · 4H2O
7.DD.55BechereriteZn7Cu(OH)13[(SiO(OH)3(SO4)]
7.DD.60Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2O
7.DD.65VonbezingiteCa6Cu3(SO4)3(OH)12 · 2H2O
7.DD.70RedgilliteCu6(SO4)(OH)10 · H2O
7.DD.75ChalcoalumiteCuAl4(SO4)(OH)12 · 3H2O
7.DD.75Nickelalumite(Ni,Cu)Al4(SO4,(NO3)2)(OH)12 · 3H2O
7.DD.75KyrgyzstaniteZnAl4(SO4)(OH)12·3H2O
7.DD.80GuarinoiteZn6(SO4)(OH)10 · 5H2O
7.DD.80Schulenbergite(Cu,Zn)7(SO4)2(OH)10 · 3H2O
7.DD.80ThérèsemagnaniteNaCo4(SO4)(OH)6Cl·6H2O
7.DD.80UM1992-30-SO:CCuHZn(Zn,Cu)7(SO4,CO3)2(OH)10 · 3H2O
7.DD.85MontetrisaiteCu6(SO4)(OH)10 · 2H2O
25.5.1ZinkositeZnSO4
25.5.2GoslariteZnSO4 · 7H2O
25.5.3NamuwiteZn4(SO4)(OH)6 · 4H2O
25.5.4KtenasiteZn(Cu,Zn)4(SO4)2(OH)6 · 6H2O
25.5.5Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2O
25.5.6Boyleite(Zn,Mg)SO4 · 4H2O
25.5.7SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
25.5.8OrthoserpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
25.5.10Glaucocerinite(Zn1-xAlx)(OH)2(SO4)x/2 · nH2O
25.5.11GunningiteZnSO4 · H2O
25.5.12ChaidamuiteZnFe3+(SO4)2(OH) · 4H2O
25.5.13Bianchite(Zn,Fe)SO4 · 6H2O
25.5.15Zincmelanterite(Zn,Cu,Fe)SO4 · 7H2O
25.5.16Zincobotryogen(Zn,Mg,Mn2+)Fe3+(SO4)2(OH) · 7H2O
25.5.17SchuetteiteHg32+(SO4)O2
25.5.18Gianellaite[(NHg2)2](SO4)(H2O)x

Other Names for Zincaluminite

Name in Other Languages:

Other Information

Other Information:
Soluble in acids and alkalies.
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 Zincaluminite

Reference List:
Bertrand and Damour (1881) Bulletin de la Société française de Minéralogie: 4: 135, 136.

Damour, A. & Bertrand, E. (1882): Zinc aluminite, a new mineral species. Jahrb. f. Mineral. 2, 351-352 (in German(?)).

Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 159.

Palache, Charles, Harry Berman & Clifford Frondel (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume II: 579-580.

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 Zincaluminite

mindat.org URL:
https://www.mindat.org/min-4409.html
Please feel free to link to this page.

Localities for Zincaluminite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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
    • Sauerland
      • Iserlohn
        • Letmathe
D. Pawlowski: "Mineralfundstellen im Sauerland", Weise (Munich), 1991
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
LAPIS 24 (7/8) 1999; Wendel, W. and Markl, G. (1999) Lavrion: Mineralogische Klassiker und Raritäten für Sammler. LAPIS 24 (7/8):34-52
          • Kamariza Mines (Kamareza Mines)
            • Hilarion area
Bertrand and Damour (1881): Bulletin de la Société française de Minéralogie: 4: 135, 136.; Damour, A. & Bertrand, E. (1882): Zinc aluminite, a new mineral species. Jahrb. f. Mineral. 2, 351-352 (in German(?)).; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 580.
Heymann, J. (1982): Al-Adamin. LAPIS 7 (3), 26-28.
USA
 
  • Nevada
    • Lyon Co.
      • Wilson District
        • Desert Creek Ranch
NBMG Spec Pub 31 Minerals of Nevada
Mineral and/or Locality  
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