77mm x 48mm
Here is an example, dear reader, of an entirely unique agate from Usan. It was picked-up by myself during June of 2016, in a gully north of Boddin Point. A plume agate, or possibly a stromatolite. One theory is that it is composed of chert with the obvious vugs of quartz.
The stone is also highly water-worn, and it is unusual for an agate of this size to remain intact in the area. Perhaps it was only recently unbound by the tide, from the sand, grit and mud that kept it whole, while slowly polishing its surface.
It's a stone I'm still excited about!
76mm x 46mm