General Information:
Chemical Formula:
Al4(SO4)(OH)10·12-36(H2O)
Composition:
(Molecular Weight = 644.29 gm)
Aluminum 16.75 % Al
Hydrogen 6.26 % H
Sulfur 4.98 % S
Oxygen 72.01 % O
Empirical Formula:
Al4(SO4)(OH)10·15(H2O)
Environment:
Precurser mineral to basaluminite.
Locality:
Irchester and elsewhere in England.
Name Origin:
Named for the composition and relation to basaluminite.
Physical Properties:
Color:
white.
Density:
2.275
Habits:
Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite)., ,
Luster:
Earthy (Dull)
Streak:
white
More details...