Stone cleaned and lapped. What stone is this?

I bought this stone like 6-7 month ago. Was old greasy and covered with oil. Stone is hard, and after one hour of lapping it, I gave up. Lapping this stone is a nightmare. Most likely should be used with oil. Anyway, now it is lapped and cleaned. 18% gray card and CMYK color scale on the photo. What is this stone?

http://traskrom.users.photofile.ru/p.../143941244.jpg
http://traskrom.users.photofile.ru/p.../143941248.jpg
http://traskrom.users.photofile.ru/p.../143941237.jpg
http://traskrom.users.photofile.ru/p.../143941231.jpg
http://traskrom.users.photofile.ru/p.../143941228.jpg
http://traskrom.users.photofile.ru/p.../143941224.jpg

Those lines in the sides and the extreme hardness suggest it to be a Hindostan.

Why is the razor from your avatar in every picture? :D

I just love my TI :)))

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Originally Posted by Piet

Those lines in the sides and the extreme hardness suggest it to be a Hindostan.

Why is the razor from your avatar in every picture? :D

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sharp eye piet that hindostan comes from French Lick, Orange County, Indiana USA, and that large slabs were used as tombstones. The original use was as a whetstone, though. The quarries were first worked around 1825 by the Prentiss family who had settled in a town in Martin County called Hindostan. The worked stones were transported by boat to New Orleans and from there it was shipped to New York and England. In England it caused a lot of controversy because of the name - it was believed the item was a fraud because Hindostan was not believed to be in America, and this nearly stopped the mining operations. However, work continued and after a change of ownership the mines were producing 4,000 cases of product each year, about half of which found its way to England and some to South America. The last remaining quarry closed in the 1980s. speed of the stone should be on par with a translucent ark or c12k and should be around 12k ruffly

also water or lite oil can be used on this stone but to get the best edge out of the stone a lite oil should be used

i hvae a stone that seems VERY similar, but the sedimentary(?) layers wider, are farther apart between the dark layers. also, if i recall correctly the darker layers may be softer and more coarse seeming.

could this be the same? the oil that was use seems to have soaked in to the stone to some degree, making it clog up with swarf, and perhaps harder to raise a slurry on.

i've been using it as a kanaban(?) for other slurry, (1k and 4k synthetic slurry, as my guess was that it was between 1 and 4k, but that was just an uneducated guess)
anywho, very interested to see this hone, hoping to learn more about what i've got.

edit: just sharpened a knife on it quite successfully. seems reasonably soft, easily scratched by a kitchen knife, but doesn't raise slurry with slurry stone easily (may be due to oil usage). and didnt seem too easy to lap (once again, oil use may be a factor)

Quote:

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Originally Posted by eleblu05

sharp eye piet that hindostan comes from French Lick, Orange County, Indiana USA, and that large slabs were used as tombstones. The original use was as a whetstone, though. The quarries were first worked around 1825 by the Prentiss family who had settled in a town in Martin County called Hindostan. The worked stones were transported by boat to New Orleans and from there it was shipped to New York and England. In England it caused a lot of controversy because of the name - it was believed the item was a fraud because Hindostan was not believed to be in America, and this nearly stopped the mining operations. However, work continued and after a change of ownership the mines were producing 4,000 cases of product each year, about half of which found its way to England and some to South America. The last remaining quarry closed in the 1980s. speed of the stone should be on par with a translucent ark or c12k and should be around 12k ruffly

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I love it when someone supplies detail like that. Thanks for the work.