Smectite from Lanark, Ontario, Canada. Comes with certificate of authenticity. Stone type: Smectite. Dominant color: multicolored. Origin: Canada. Average weight (Carats): 20.1 carats. Dimensions (mm): 20 x 17 x 11 mm. Ref. : SKU030111. Natural materials composed of fine particles, rich in aluminum silicates and other minerals.
