Description
Type of stone: Oncolite
Origin: Exmouth Western Australia
Approx Size: 150mm x 100mm x 9.5mm
Weight: 253 grams
The front is polished and the back is rough.
Oncolites are thought to be formed by cyanobacterial growth. Oncolites are sedimentary structures composed of oncoids, . Oncolites are very similar to stromatolites, but, instead of forming columns, they form approximately spherical structures.
Exmouth was once a sea floor which is where the Oncolites formed. Now it is dry land with a mountain range.
Comes with free stand as seen in the photos.
