Citrine Sterling Silver Ring Size:5 Most commercial carnelian is heated

Most commercial carnelian is heated to deepen its color

with its characteristic blue-to-teal color from copper in the structure

one tumbled

A collector-quality natural point for a shelf

Peridot is the gem variety of olivine ((Mg

Citrine Sterling Silver Ring Size:5 Most commercial carnelian is heatedA warm gold oval at the center of a solid silver bandthe November birthstone in its most direct form. Citrine is iron bearing silicon dioxide (SiO&sub2;), its amber color produced by ferric iron in the crystal lattice through natural or induced geological heat. This faceted oval stone is set in solid . 925 sterling silver; the cut multiplies the stones internal refraction, so the amber deepens at the center and pales toward the edges as light moves