I recently acquired a Belgian "Deep Rock" originally distributed through Pearl Duck. I understand these stones originally were mined from the deeper layers of a coticule quarry.
I have several other cotis, and the first thing I noticed was how heavy this stone is. The second was that there is no figuring, either on the coti or the BBW side. I've never seen a BBW without the telltale pattern.
So, I'm wondering.... a deep strata rock would be more highly compressed, right? Could that account for its comparative weight and the homogeneity of the surface? Anyone else notice this? Thanks.