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Black Star Cabs, Round - 7mm
- 8110269
- £2.80 exc.VAT
Also known as star diopside; these stones are glossy black with inclusions that produce an off-centre star effect (asterism)
Hardness (vs abrasion/scratching) 5.5/10
Toughness (resistance to fracture) fair to good
Stability (resistance to chemicals, UV etc.) fair
