“While Neolithic clay figurines are numerous at S. Čuka (115 have been found), the imagery of one stone pendant is unique in ...

Nephrite, an aggregate rock made mostly of tremolite ... Earlier this month in Tucson, Ariz., during the annual gem shows in that Sonoran Desert city, the buzz among jade lovers centered on ...

Nephrite is the second ... recent achievements have included growing jewellery-quality gems from a “ruby seed”, and even creating glow-in-the-dark crystals.

The South Island of New Zealand is hiding this hidden gem — err, gems ... quartz, jasper, nephrite, or even sapphire. As the water rinses the stones, their true colors appear — turquoise ...