General Information:
Chemical Formula:
(Ba,Sr)6(Ca,Mn)6Mg(CO3)13
Composition:
(Molecular Weight = 1,816.58 gm)
Barium 34.02 % Ba
Strontium 7.24 % Sr
Calcium 9.93 % Ca
Magnesium 1.34 % Mg
Manganese 4.54 % Mn
Carbon 8.60 % C
Oxygen 34.35 % O
Empirical Formula:
Ba4.5Sr1.5Ca4.5Mn2+1.5Mg(CO3)13
IMA Status:
Approved IMA 1961
Physical Properties:
Cleavage:
[???] Good
Color:
snow white, yellow brown, white, or light yellow.
Density:
3.596 - 3.66, Average = 3.62
Diaphaniety:
Translucent
Hardness:
3-4 - Calcite-Fluorite
Luminescence:
Phosphorescent fluorescent.
Luster:
Vitreous (Glassy)
Streak:
white
More details...