Hi guys I’m struggling again to identify this stone.
Test results:
RI 1.54-1.56
SG-2.79
It’s way too hard to tell from your photos.
Without seeing any light behind it (to see if it’s Translucent or Opaque), it is very difficult to tell.
That said, I’ll “guess” at it maybe being Obsidian.
Zektzerite?
my guess would be agate
thanks