Beautiful Aqua Terra jasper stones reminds me of little globes. The stones have a lovely soapy sheen and colours of verdigris green with veins of sand and terracotta. 
They have been spoked much like a wheel and riveted to the silver. They can still turn and move freely.
An unusual yet simple design.

The earrings are about 24 mm long and the beads have a diameter of 10 mm.
(Last picture is for size reference. The stones are jade in that photo).
 
*Sea sediment jasper rondelles 10 x 5 mm.
*Sterling silver wire 0.8 mm thickness.