General Information:
Chemical Formula:
NaCa2[B9O14(OH)4]·2(H2O)
Composition:
(Molecular Weight = 528.49 gm)
Sodium 4.35 % Na
Calcium 15.17 % Ca
Boron 18.41 % B
Hydrogen 1.53 % H
Oxygen 60.55 % O
Empirical Formula:
NaCa2B9O14(OH)4·2(H2O)
Environment:
In a borate deposit.
IMA Status:
Approved IMA
Locality:
In the Pobrdzhsky Potok and Peskanya deposits, 280 km south of Belgrade, near the town of Balevats on the Jbar River, western Serbia, Yugoslavia.
Name Origin:
For the Serbian cloister Studenitsa near the occurrence.
Physical Properties:
Cleavage:
None
Color:
colorless, light dirty yellow, or light gray.
Density:
2.29 - 2.33, Average = 2.31
Diaphaniety:
Transparent
Habits:
Striated - Parallel lines on crystal surface or cleavage face., Wedge shaped - Crystals shaped like a wedge.,
Hardness:
5.5-6 - Knife Blade-Orthoclase
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
white
More details...