  In the present paper we performed the analysis of available data on
structural, thermodynamic and mechanical properties of B6O. Although the
compound is known for half a century and has been extensively studied, many
properties of this boron-rich solid remain unknown or doubtful. Semi-empirical
analysis of our experimental and literature data allowed us to choose the best
values of main thermodynamic and mechanical characteristics among previously
reported data, to predict the thermoelastic equation of state of B6O, and
dependence of its hardness on non-stoichiometry and temperature.
