Meta-alunogen Mineral Data

Meta-alunogen Mineral Data

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General Meta-alunogen Information

Chemical Formula:

Al4(SO4)6·27(H2O)

Composition:

Molecular Weight = 1,170.72 gm

Aluminum 9.22 % Al 17.42 % Al₂O₃

Hydrogen 4.65 % H 41.55 % H₂O

Sulfur 16.43 % S 41.03 % SO₃

Oxygen 69.70 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Al₄(SO₄)₆·27(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1942

Locality:

Link to MinDat.org Location Data.

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Meta-alunogen Crystallography

Crystal System:

Monoclinic

Physical Properties of Meta-alunogen

Color:

White.

Luster:

Waxy

Optical Properties of Meta-alunogen

Optical Data:

Biaxial (+), a=1.469, b=1.473, g=1.491, bire=0.0220

Calculated Properties of Meta-alunogen

Fermion Index

Fermion Index = 0.00157
Boson Index = 0.99843

Photoelectric:

PE_{Meta-alunogen}= 1.37 barns/electron
U=PE_{Meta-alunogen} x r_electron= . barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Meta-alunogen is Not Radioactive

Meta-alunogen Classification

Dana Class:

29.8.7.1 (29)Hydrated Acid and Sulfates

(29.8)where (A)2 (XO4)3 · x(H2O)

(29.8.7)Dana Group

29.8.7.1 Meta-alunogen Al4(SO4)6·27(H2O) Mono

Strunz Class:

VI/C.08-80 VI - Sulfates,Chromates,Molybdates and Tungstates

VI/C - Water-bearing sulfates without unfamiliar anions. cations of medium size

VI/C.08 - Rhomboclase - Meta-alunogen series

VI/C.08-10 Rhomboclase (H5O2)Fe(SO4)2·2(H2O) P nma 2/m 2/m 2/m

VI/C.08-20 Lausenite Fe2(SO4)3·6(H2O) Unk. Mono

VI/C.08-30 Kornelite Fe2(SO4)3·7(H2O) P 2₁/c 2/m

VI/C.08-40 Coquimbite Fe2(SO4)3·9(H2O) P 3c 3 2/m

VI/C.08-50 Paracoquimbite Fe2(SO4)3·9(H2O) R 3 3

VI/C.08-60 Quenstedtite Fe2(SO4)3·10(H2O) P1 1

VI/C.08-70 Alunogen Al2(SO4)3·17(H2O) P1 1

VI/C.08-80 Meta-alunogen Al4(SO4)6·27(H2O) Mono

Other Meta-alunogen Information

References:

PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Meta-alunogen :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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Print or Cut-and-Paste your Meta-alunogen Specimen Label here :

Meta-alunogen

Al4(SO4)6·27(H2O)
Dana No: 29.8.7.1 Strunz No: VI/C.08-80
Locality:

Notes: