Stone(s): black tourmaline
Dimensions: 9cm x 6cm
Weight: approx. 671g
Color: black
Contractual photos
Stone cut: raw
Shape: freeform
Classification: silicate group
Mohs hardness: 7 – 7.5
Density: 3-3.10
Origin: Brazil, Sri Lanka, USA, Mexico
Care instructions: Tourmaline is not fragile. No specific maintenance required.























