9.6" Polished Green Opal Egg - Madagascar

 
This is a large, 9.6" tall, polished egg made from green opal that was collected in Madagascar. It weighs just under 20 lbs and comes with an acrylic ring display stand. Black dendrites can be found on one side of this sphere.

Green opal is an amorphous variety of quartz, with the chemical composition of SiO2 · nH2O. This hydrated silicate mineraloid has the associated chemical composition and lack of crystal structure that terms this mineral conglomerate as an opal.

During formation, microscopic holes form within the silica, forming secondary silica lamellae-like strings throughout, giving the rock its inner web-like appearance.

DETAILS
SPECIES
Green Opal
LOCATION
Madagascar
SIZE
9.6" tall, 7" wide, 19.85 lbs
SUB CATEGORY
ITEM
#134546