General Information:
Chemical Formula:
Al11(SO4)3(PO4)2(OH)21·16(H2O)
Composition:
(Molecular Weight = 1,420.33 gm)
Aluminum 20.90 % Al
Phosphorus 4.36 % P
Hydrogen 3.76 % H
Sulfur 6.77 % S
Oxygen 64.21 % O
Empirical Formula:
Al11(SO4)3(PO4)2(OH)21·16(H2O)
Locality:
Hotson farm, Pofadder, South Africa.
Name Origin:
Named for the locality.
Physical Properties:
Color:
white.
Density:
2.06
Habits:
Compact - Occurs as a compact mass., ,
Hardness:
2.5 - Finger Nail
Luster:
Silky
Streak:
white
More details...