Density, g/cm³

7.46

Solublity

Insoluble in water

Crystal Structure

Trigonal,
space group R_3c,
Point group 3m

Melting Point, at °C

1650

Thermal Conductivity, W/(m · K)

46

Thermal Expansion, 1/°C

a_a = 16 x 10^-6
a_c = 4 x10^-6

Curie Temperature, °C

607

Mohs Hardness

5.5

Specific Heat Capacity, cal/g °C

0.06

Dielectric Constant, at 25 °C

e_a = 54
e_c = 43

Piezoelectric Strain Constants, C / m²

e₁₅ = 2.63
e₂₂ = 1.84
e₃₁ = -0.11
e₃₃ = 1.93

Elastic Coefficient, N/m²

C₁₁ = 2.33 x 10¹¹
C₃₃ = 2.77 x 10¹¹

Lattice Constant, Å

a = 5.154
c = 13.783

Spectrum