https://www.etsy.com/au/listing/508381978/blue-cyan-natural-peruvian-chrysocolla

Necklace Specs
Gemstones: Genuine Peruvian Chrysocolla
Hardness: 6.5 – 7.0 Mohs scale
Gemstone diameter: 16 x 11 mm
Color: bluish-green, cyan
Necklace Size: 45 cm

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