As the title says stones are hyalite (white and clear stone) which is a kind of opal and an opal cabochon.
Ring is sterling about 1.5" high from the collection of Barb Moermond.
Spent most of yesterday doing the preliminary polishing on an group of pendants. Will be working on them more tomorrow. And it wax I'm carving a standing bird with a flaring muticolored pearl wing.