Necklace between quartz and flowers

To a showy quartz pendant I wanted to contrast delicate and light flowers.
The metal part of the quartz pendant is placated 22 karat gold.
The flowers are crocheted with glass beads on a carved x-ray plate base (patented and non-copyable model).
The back of the necklace is finished with semi-precious stones.
There are river pearls and hematite.