PHYSICAL PROPERTIES:

Density: 7.57 g/cc

Molecular Weight: 291.96

Crystal Structure: Distorted Perovskite

     Crystal System (RT):         Pbnm a = 5.426A

              Orthorhombic:                   b = 5.496A

Crystal System ( >1350 ^oC): R3m(?) Rhombohedral

Phase Transition: -1350 ^oC

Dielectric Constant: -20 to 25

Melting Point: 2100 ^oC

Color: Deep red purple to green purple

Thermal Expansion: -11 x 10-6/ ^oC

Twin Structure: Can be produced twin free or with only several twin boundaries paraliei to (100) of pseudo-cubic cell

Surface Roughness: Within 10 Nanometers