Iolite faceted round 1.5mm
- 8110918
- 11
- Regular Price: £0.48 per pc exc.VAT
- Special Price: £0.38 per pc exc.VAT
A beautiful blue, violet, grey gemstone often with eye visible trichroism; different colours can be seen from different angles.
Hardness (vs abrasion/scratching) 7-7.5/10
Toughness (resistance to fracture) poor (brittle with moderate cleavage)
Stability (resistance to chemicals, UV etc.) fair to good