Principal sources: Brazil

formed through geological heat and widely used in ornamental work since antiquity

A display sphere that repays the attention you give it—the light changes with every shift of angle

and a green aventurine sphere

Earrings for the collector drawn to unusual pairings—the warm sage and cool blue work together without competing

The Rest Stone Set Green Aventurine Principal sources: BrazilFive stones selected from different mineral families, each with a long history in calming and quieting practice. Howlite is a calcium borosilicate mineralbright white with grey veining, Mohs 3. 5, prized for its matte, absorbent surface. Amethyst is the violet variety of quartz, colored by trace iron and natural irradiation, Mohs 7. White Aventurine is quartz with fuchsite mica inclusions that produce a gentle shimmer. Prehnite is a pale green calcium