Copper Lap - Polishing Lap unique calcite Approximate Size of 1 piece:

Approximate Size of 1 piece: 53mm x 30mm x 2mmApproximate Weight of 1 piece: 6g

Unlike many minerals sold for crystal form or transparency

They are designed this way to keep the motor from burning out

also known as iron-enhanced quartz

Approximate Size of 1 piece: 55mm x 42mm x 2mmApproximate Weight of 1 piece: 7g

Copper Lap - Polishing Lap unique calcite Approximate Size of 1 piece:Description: The copper laps are clean; in the photos they appear to have weird patterning. but it is just oil residue from the machine oil being pressed on under a shrink wrap coating to keep them clean. Copper laps are for faceting. They are to be scored with a knife and impregnated with diamond powder or any other polishing particle type. The softness of the copper will gum up and hold the particle within. Keep them clean and you can use them over