Black Thuringen Hone

Mystery Thuri 1

Black Thuri

After testing, checking under a microscope, etc – my semi-final opinion is that this is a German hone, and it probably is from Thuringia. Possibly one of the black stones quarried by the Escher company when they finally started producing their own stones. Without a label – there is no way to know for sure. 

This uber-fine finisher was sold to me by someone that had no reason to fabricate a story about it’s origin; it was explained to me that this stone is from Germany.      

Judging it visually - this stone was well loved by its original owner – the sides and bottom wore heavy handling patina, and the top was very dished. This being a very hard stone – the concave top tells me it saw a lot of use. 

This stone is harder than any Escher I’ve owned, when honing, the stone pushes back at me more than a Thuri, yet it remains smooth and silky where I’d expect to sense a much glassier sensation. When the honing surface is wet – my fingers sense a unique ‘nap’ or dry type of texture that I don’t get from hard stones usually.   

When wet, the top of the stone reveals a very subtle muted pattern with diagonal wavy stripes and some reddish coloring. There are a good amount of mica-like flecks in the stone also – these can be seen easily when the stone is dry and held on an oblique angle to a strong light source. 

When honing - no slurry comes up unless you get a rubber stone and make some. The surface is quite engaging –The polish it imparts on a razors bevel isn’t quite what one would call a ‘mirror’ – but it is a very high polish.  

Approx. Dimensions: 5.9 x 2.0 x 0.8” / 150 x 51 x 20 mm

Weight: 15 oz / 425 g

© Keith V Johnson 2014 - 2018