I'm finally testing these stones!!!!
The second one (random purple rock???) is VERY FINE....finer than my thuringians But rather slow.
Congratulations thank you for sharing, I am quite familiar with this stone. I use mine as a final finisher with oil only on the finest steel. Most razors can not be pushed this far.
It took 3 days to remove the factory grind marks off the edge of my new EDC. Barber hones were used "dry" to polish the mirrored edge you see. Much better.
A very sharp single edge similar to a Kiridashi.
And my other EDC. Both are carried and are one hand flippers. Mike