Indium is a very soft metal, which can be cut with a knife!

Its melting point is very low, at 156.6°C or 313.9°F.

When bent, it gives off a strange crackling sound because of crystals breaking inside the metal that have formed during solidification.

10 grams of indium has the volume of a cube of 1.37cm³
(1.11 x 1.11 x 1.11cm cube) or 0.5 x 0.5 x 0.5 In.