23.50ct Freeform Triangular Shape Opal Doublet 30x24mm Horotec 07.116 Set of 13 dies 2x Barlow lens included

2x Barlow lens included

Ø38/41mm Die

4" x 1½" Aurelia (Calico) 84 fold

Height: 100mm

1ft/min (0

23.50ct Freeform Triangular Shape Opal Doublet 30x24mm Horotec 07.116 Set of 13 dies 2x Barlow lens includedOpal is probably the most famous phenomenal stone displaying the unparalleled play of colour, a rainbow coloured kaleidoscopic effect. The name opal derives from the word 'opalus' given by the Romans, which is Latin for 'precious stone'. They can be fragile which makes it more suitable for jewellery such as necklaces, brooches and earrings that are less likely to be knocked. Opal is the birthstone for October. Mohs Scale of Hardness: 5. 5 6. 5