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Yes one of the names for it.

My findings about Canadian Oilstone even thought are limited are already posted here and on other forums. I do believe Neill Miller also posted here something on this topic.
Otherwise if you will be...

I am on this with Vasislis as tehre is in my opinion enough evidence to support it.
However for those who will now go and start reading please be mindfull as there are also Canadian Oilstones which...

Easiest is have them in your hand. There is big difference to feel the edge of lapped hone. Washita feels more like serated knife comparing with hindostan.

I would add another vote for Washita.