General Information:
Chemical Formula:
Ba3Na(Ca,U)Y(CO3)6·3(H2O)
Composition:
(Molecular Weight = 1,027.54 gm)
Barium 40.09 % Ba
Sodium 2.24 % Na
Calcium 2.93 % Ca
Yttrium 8.65 % Y
Uranium 5.79 % U
Hydrogen 0.59 % H
Carbon 7.01 % C
Oxygen 32.70 % O
Empirical Formula:
Ba3NaCa0.75U0.25Y(CO3)6·3(H2O)
IMA Status:
Approved IMA 1987
Physical Properties:
Cleavage:
[???] Indistinct
Color:
yellow, black, greenish gray, white, or gray.
Density:
3.47 - 3.58, Average = 3.52
Diaphaniety:
Translucent to Opaque
Hardness:
3.5-4 - Copper Penny-Flourite
Luster:
Vitreous (Glassy)
Streak:
white
More details...