Chatoyancy in quartz with crocidolite

Weight: 3.49 ct
Size: 10.1 x 8.2 x 5.4 mm


In this quartz, cat’s eye effect is caused by tiny needles of crocidolite, a fibrous form of riebeckite or magnesioriebeckite.
Fantastic gem for collectors and for jewelry!

Color: brownish yellow
Cut: oval cabochon
Treatments: not treated in any way
Origin: Brazil