From the top left:
A beautiful rectangular rhodocrosite on sterling silver wire is on beaded copper chain with sterling silver spring ring clasp, necklace measures 19" long.
Tumbled tourmaline chips with copper spacers on rosy brass chain, 26" long.
Hook earrings with faceted dark copper coated hematite, measures less than an inch.
Brass hoop earrings with tumbled tourmaline and copper, measures 2".