Crystal properties
Crystal growth method	Czochralski method
Crystal growth orientation	(100)
Maximum size	Type a) Up to Æ 3 inch
Crystallographic properties
Structural typ	Distorted Perovskite
Crystallographic structure	Rhombohedral a= 5.357 Å ( x = 60°6') Perovskite (only for calculations) a = 3.863 Å ( x = 90°5')
Twinning structure	Orthogonal twin planes along (100)
Colour	Colourless to very light brown
Physical properties
Density	6.52 g/m3
Melting poin	2080 °C
Hardness	5.9 (Mohs)
Thermal expansion coefficient	1.0 * 10-5 K-1
Dielectric constant	25
Dielectric loss tangent	3* 10-4 at 300 °K 6 * 10-5 at 77 °K
X-ray properties
Orientation	Type a) (100), (110), (111)