General Information:
Chemical Formula:
Ba(Al,Mg)(PO4,CO3)(OH)2·(H2O)
Composition:
(Molecular Weight = 406.92 gm)
Barium 33.75 % Ba
Magnesium 1.49 % Mg
Aluminum 4.97 % Al
Phosphorus 5.71 % P
Hydrogen 0.99 % H
Carbon 5.90 % C
Oxygen 47.18 % O
Empirical Formula:
BaAl0.75Mg0.25(PO4)0.75(CO3)2(OH)2·(H2O)
Environment:
Dolomite veins.
IMA Status:
Approved IMA (Dana # Added)
Locality:
Kovdor on the Kola Peninsula, Russia.
Name Origin:
For N. I. Krasnova (1941-), mineralogist at St. Petersburg University.
Physical Properties:
Cleavage:
[010] Good
Color:
pale blue.
Density:
3.7
Diaphaniety:
Translucent
Habits:
Spherical - Spherical, rounded aggregates., Fibrous - Crystals made up of fibers.,
Hardness:
2 - Gypsum
Luminescence:
Non-fluorescent.
Luster:
Silky
Streak:
white
More details...