The physical properties of a diamond

The physical properties of a diamond.

Cleavage. The diamond has a pronounced cleavage parallel to the octahedron faces. This is used for cutting (splitting) and grinding. Przy lekkim uderzaniu ostrza przyłożonego do diamentu w kierunku płaszczyzny łupliwości następuje rozłupanie diamentu na

The fragility of minerals

The fragility of minerals.

Under the action of mechanical factors, such as hitting or pressing down with the blade of a knife in a certain direction, crushing, sudden cooling down or heating up, some minerals decompose properly into pieces bounded by flat surfaces. Własność tę