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Meta-aluminite

A valid IMA mineral species
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Discuss Meta-aluminite
EditAdd SynonymEdit CIF structuresClear Cache
Formula:
Al2(SO4)(OH)4 · 5H2O
Colour:
white
Lustre:
Silky
Hardness:
1 - 2
Specific Gravity:
2.18
Crystal System:
Monoclinic
Name:
Named by C. Frondel in 1968 for its relationship toaluminite and being in a lower hydration state.
This page provides mineralogical data about Meta-aluminite.


Classification of Meta-aluminite

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
C : With only medium-sized cations; chains of edge-sharing octahedra

Dana 8th ed.:
31.7.5.1

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
7 : (AB)2(XO4)Zq·xH2O
Hey's CIM Ref.:
25.6.4

25 : Sulphates
6 : Sulphates of Al and Tl

Mineral Symbols
Transparency:
Transparent

Colour:
White
Hardness:
1 - 2 onMohs scale
Comment:
Soft
Density:
2.18 g/cm3 (Measured)    2.19 g/cm3 (Calculated)

Optical Data of Meta-aluminite
Surface Relief:
Moderate
Dispersion:
relatively weak

Chemistry of Meta-aluminite

Crystallography of Meta-aluminite
General Appearance of Type Material:
Microcrystalline, minute laths, aggregated into nodular to irregular masses
Place of Conservation of Type Material:
Harvard University, Cambridge, Massachusetts, USA, 109543.
Associated Minerals at Type Locality:
GypsumFelsőbányaite

Synonyms of Meta-aluminite

Other Language Names for Meta-aluminite

Related Minerals -Strunz-mindat GroupingMon. 2/m :P21/b7.DC.10ParabutleriteFe3+(SO4)(OH) · 2H2OOrth.mmm(2/m2/m2/m)7.DC.10ButleriteFe3+(SO4)(OH) · 2H2OMon. 2/m :P21/m7.DC.15FibroferriteFe3+(SO4)(OH) · 5H2OTrig.3 :R37.DC.20XitieshaniteFe3+(SO4)Cl · 6H2OMon. 2/m :P21/b7.DC.25Zincobotryogen(Zn,Mg,Mn2+)Fe3+(SO4)2(OH) · 7H2OMon. 2/m7.DC.25BotryogenMgFe3+(SO4)2(OH) · 7H2OMon. 2/m7.DC.30ChaidamuiteZnFe3+(SO4)2(OH) · 4H2OTric. 1 :P17.DC.30GuilditeCuFe3+(SO4)2(OH) · 4H2OMon. 2/m :P21/m7.DC.40PauladamsiteCu4(SeO3)(SO4)(OH)4 · 2H2OTric.1 :P17.DC.45RiotintoiteAl(SO4)(OH) · 3H2OTric. 1 :P17.DC.50ThorneitePb6(Te6+2O10)(CO3)Cl2(H2O)Mon. 2/m :B2/b7.DC.55VendidaiteAl2(SO4)(OH)3Cl · 6H2OMon. 2/m :B2/b

Other Information
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  • Raman and XRD data at RRUFF project
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  • American Mineralogist Crystal Structure Database
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    • References for Meta-aluminiteⓘWaldsea LakeGreengrass et al. (1999)Robinson et al. (1992)Robinson et al. (1992)
    France
     
    Italy
     
    Bazzoni C. et al.
    Russia
     
    Kudrin et al. (2021)
    Spain
     
    Rosell-Riba et al. (2022)
    USA
     
    Bullock (1981)Am Min 53:717-721
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