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Marshal; do you honestly believe that whale oil was used.

StewieS;

Whale oil has low viscosity (lower than olive oil),[4] is clear, and varies in color from a bright honey yellow to a dark...

I have no intention of buying more honing stones. So that in itself will represent the end of my posts on nat stones. (you can breath easy now gents).

StewieS;

EKretz; I am assuming you have limited knowledge of Salmen's background as an owner, major dealer and exporter of U.K mined natural sharpening stones. They were equivalent to Pikes from the USA.
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Euclid; not wanting to upset the apple cart between us, but a 2 -3 k judgement on the stones working properties, tells me far more about the stone than a simple rating of coarse, intermediate, or...

Another stone I recently purchased from the U.K. (Most likely the last honing stone I am going to purchase.)
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Euclid; you may want to refer to work of the late Henk Bos, who applied a grit rating to the natural stones featured within his website....

Of interest, if I were to reduce the total weight of this stone by 25g (4.8% of its current weight), it would still be borderline high of a Washita's range of SG. (2.25 or under)

StewieS;

Had the opportunity to test this stone out to form a secondary bevel on 1 of my workshop chisels. The stone itself retained a good level of oil on the top surface of the stone, and there was no need...

aaron; I am prepared to listen. Put forward your case that the stone is not an Ark, but a Washita.

StewieS.

Received this 2nd hand natural sharpening stone from the U.K this morning.

Under all that old oil and grime there are features that indicate its most likely crystaline novaculite in structure, an...