Crystal structure

Orthorhombic

Point group

mm2

Lattice parameters, Å

a

12.96

b

10.56

c

6.49

Hygroscopic susceptibility

None

Density, g.cm-3

3.6

Electrical resistivity (room temperature), Ω.cm

1011 to 1012

Aperture mm2

up to 9x 9

Length mm

up to 10