Material: Smoky quartz (natural smoky quartz)
Size Diameter: 20mm, height 6mm (circular)
Mass: 5.0g (1 piece)
Mohs hardness: Seven
The number of packing: Set of 4
Withstand load: 200kg / Pieces
**Please note that there may be a 3-5 day delay between the time you place your order and the time it is dispatched**