-?GOOD SELECTION OF MATERIAL?Color and lustre: like amber, stones have craggy on the outside and streaked with veins inside. Shape: generally oval shape, vary in size and thickness. Hardness: silicon dioxide, extremely high hardness, abrasion resista..
-?GOOD SELECTION OF MATERIAL?Color and lustre: like amber, stones have craggy on the outside and streaked with veins inside. Shape: generally oval shape, vary in size and thickness. Hardness: silicon dioxide, extremely high hardness, abrasion resista..