Calcite and scheelite cabochon

Calcite and scheelite cabochon

Size: approx. 27x18mm

Weight: 18.20ct

Varying tones of dark to light denim blue with pale taupe.

Also marketed as ‘Lapis Lace Onyx’, it does not contain either lapis or onyx – the white is calcite and the blue is scheelite.

Scheelite has a hardness of 4.5-5 while calcite has a hardness of 3 making this stone suitable for earrings, pendants and brooches but unsuitable for rings or bracelets and care needs to be taken when designing for this stone and when working with it. 

• 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