13.93ct Pair of Top Drilled Amethyst Briolettes 19x7mm 12 litre "Rota Barrel" Variable Speed Planishing Block 63 x 63

Planishing Block 63 x 63 x 18mm

Light weight nylon plastic

Inductance Range: 20mH/20mH/2H/20H

with a capacity of 100ct and 250ct

13.93ct Pair of Top Drilled Amethyst Briolettes 19x7mm 12 litre "Rota Barrel" Variable Speed Planishing Block 63 x 63Amethysts lustre is vitreous, it rates 7 on the Mohs scale which makes it suitable for jewellery that has secure settings to protect the stone from wear. Depending on the transparency of the stone which can be anything between transparent to opaque, amethysts are cut into faceted gems, cabochons, beads or shaped into carvings. Very commonly they are left intact as geodes, natural specimens of crystals still attached to their host rock, that become