Thread: Escher stones with streaks and dots

I had one of those Y-G Thuris with streaks in original Celebrated box. The stone was 5x1" and quite soft.

Originally Posted by hatzicho

One stroke with a straight is enough and you directly recognize their great performance! No need for a long term testing.

That was my poor attempt at humor. I would still test a few. Haha. I would love to have the opportunity to visit the old quarries myself.

It is good to have someone who has access to these rocks and to quarries as they can give invaluable insight for us others who are not so lucky.
Also from my own experience with CFs there will be coming even more freaky variations of those hones which could be either natural or purposefully cut by the maker.