How do you cut and shape stone? - Answers

If the stone is a crystal, such as Diamond, you tap with a punch and hammer carefully along "cleavage lines". If Amorphous, and thin, a very high pressure/speed stream of water, containing very hard abrasive particles is slowly moved across the surface, producind a beautifully cut face. If Amorphous and thick, an abrasive blade (or band) is run against the stone. This depends on the material, the abrasive, and the desired surface. Small synthetic diamonds are frequently used for their ability to cut all other stones.