Larvikite facet-topped cabochon

Larvikite facet-topped cabochon

Size: approx. 41x23mm

Weight: 42.65ct

Black with varying tones of grey and areas of silver-blue schiller.

This opaque, coarse-grained igneous rock has layers of feldspar within it which produces the silver-blue schiller.  It is named after Larvik in Norway where this type of rock is found.

With a hardness of 6-6.5, Larvikite is suitable for use in rings, pendants, earrings, bracelets, brooches and cufflinks, although abrasion and wear may occur in rings and bracelets. 

• Hardness – resistance to scratching and wear
• Stability – resistance to alteration by light, heat or chemicals
• Toughness – resistance to fracture, cleavage or cracking

Please note you will receive the stone in the photograph