General Information:
Chemical Formula:
Y2(CO3)3·2-3H2O
Composition:
(Molecular Weight = 402.88 gm)
Yttrium 44.14 % Y
Hydrogen 1.25 % H
Carbon 8.94 % C
Oxygen 45.67 % O
Empirical Formula:
Y2(CO3)3·2.5(H2O)
Environment:
Alteration product of gadolinite.
IMA Status:
Approved IMA 1987
Locality:
Ytterby, northeast of Stockholm, Sweden.
Physical Properties:
Color:
white.
Density:
3.12
Diaphaniety:
Transparent to translucent
Habits:
Fibrous - Crystals made up of fibers., Pulverulent - Forms a loose, poorly-coherent powdery mass.,
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Dull
Streak:
white
More details...