MATTE Purple Sardonyx (dyed) 10mm Star Cut Round - 15-16 Inch September This Lapis has been treated

This Lapis has been treated to enhance the blue color

but also for industrial purposes from watch gears and scientific instruments to sandpaper and other abrasives

Moss Agate is a variety of Chalcedony

the mineral was named for French paleontologist Eugene Durmortier (1803-1873)

tourmaline and other minerals

MATTE Purple Sardonyx (dyed) 10mm Star Cut Round - 15-16 Inch September This Lapis has been treatedSardonyx has a Sard base, typically of brown or black, with bands of white Onyx running through it. Sard is not Onyx, but rather a dark variety of Carnelian. Sardonyx is sometimes treated to bring out its reddish tones. It is believed by some to improve memory and increase analytical skills.