Framed Ammonite Fossil Group ;Iridescent/Opalescent Cretaceous

Framed Ammonite Fossil Group ;Iridescent/Opalescent Cretaceous.

These natural and beautiful flashes of colour , when turned towards the light,are produced by the shell of the fossil being replaced by the mineral argonite,many millions of years ago. Mounted in a deep box frame  on green felt background. Great gift idea!
Date: Cretaceous 120 to 110 Million years old
Provenance: N. W Coast of Madagascar.
Size: Frame is 19 x 19 cm depth 3.3 cm  404 gm 
Condition: The ammonites have very good  detail and preservation and excellent iridescence showing up an array of rainbow colours. code 100-207