SnO₂

Single crystal tin dioxide (SnO₂) substrates. The crystal structure is tetragonal, with lattice constants a = 4.73 Å and c = 3.18 Å. The density is 6.9 g/cm³ and the Mohs hardness is 7. The colour is dark yellow-brownish. The preparation method is natural, and the crystals show natural twinning defects. The usual orientations are…