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extracted: Coticule Quarry at Ol Preu.
size: irregularly shaped bout, 20cm long, 5.6cm at widest point, 3cm at one end, 2.5cm at the other end.
natural combination hone: thickness of Coticule: 8-10mm / thickness of BBW: 14-16mm
speed with slurry: slow (range: very slow - slow - moderate - moderately fast - fast - very fast)
speed with water: slow (range: very slow - slow- moderate)
slurry: a faint sensation of fine abrasion, typical sound of "sharpening steel" Slurry turns gray after a few strokes.
water:smooth almost glass-like sensation.
Slurry specifics: good slurry release.
Sharpness level coming off slurry: ++ (range: + shaves my armhair barely, ++ shaves my armheir well, +++ sufficient to shave my face)
Finishing properties, water only: excellent. hone leaves very smooth edge.
Dilucot: follow standard procedure.
Unicot: follow standard procedure.
Touch-up hone, use with water: capable of reclaiming slightly dulling edges. 60 -100 laps depending on edge condition.
Additional remark: Coticule part consists of 2 sub-layers. After several decades of regular use, the owner will descover an entirely new Coticule with different properties. Second layer will most likely be slower and +++ on slurry-sharpness.