Médaille Animal Queen of Paws Calcédoine taille mediumThe sweetest gold plated sterling silver medium pet tag for the collar of your most loyal companion. With a dyed green chalcedony gemstone set in an etched heart motif, this charm has a clasp designed to clip onto their collar with ease. Gemstone Information Often mistaken for jade, dyed green chalcedony is a beautiful, unique variety of quartz. Throughout history, people have believed this stone symbolised strength and brought courage to wearers.