General Information:
Chemical Formula:
Na(Sr,Ba)PO4
Composition:
(Molecular Weight = 227.95 gm)
Barium 27.11 % Ba
Sodium 10.09 % Na
Strontium 21.14 % Sr
Phosphorus 13.59 % P
Oxygen 28.08 % O
Empirical Formula:
NaSr0.55Ba0.45PO4
Environment:
Nepheline syenite pegmatite.
IMA Status:
Approved IMA 1980
Locality:
Lovozero massif, Kola Peninsula, Russia.
Name Origin:
Named for Olga Anisimovne-Vorobiova (1902-1974), Russian mineralogist.
Physical Properties:
Color:
blue or blue green.
Density:
3.94
Habits:
Microscopic Crystals - Crystals visible only with microscopes., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).,
Hardness:
4.5 - Between Fluorite and Apatite
Luster:
Vitreous (Glassy)
Streak:
white
More details...