Selenite 10mm Round A Grade 15-16 Inch Rainbow Sapphire usually in white on hues

usually in white on hues of brown

It's actually a pink variety of Beryl -- the family of gemstones that also includes Aquamarine

Clear Quartz

and the material has not been treated with dye

Ocean Jasper is a commercial name for Orbicular Jasper

Selenite 10mm Round A Grade 15-16 Inch Rainbow Sapphire usually in white on huesSelenite is a crystal formed from the mineral gypsum, which comes in many forms and color variations, but has been used historically to describe the transparent variety. Our strands, cut as rounds are somewhat opaque and powerfully radiant fitting since its name originates from the Greek word for "moon," an allusion to the moon like white reflections of the mineral or to the quality of the light transmitted from the stone.