Lapis lazuli unpolished slice

Lapis lazuli unpolished slice

Size: approx. 16x17mm

Weight: 16.00ct

Lapis-blue with band of off-white and some sparkle from golden pyrite.

Lapis lazuli is an opaque rock that consists of blue lazulite, white calcite and golden pyrite.

With a hardness of 5.5, good toughness and fair stability, this stone may be used for earrings, pendants and brooches but it may show signs of abrasion and wear in rings, bracelets or cufflinks and care needs to be taken when setting this stone. 

• 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