There is a ton of variety in novaculite. It is tough to say where the boundaries of hard/soft/washita start and end.
Probable lily white. Kind of fine in feeling, but acts coarse because it is friable.
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Ancient glassy coarse washita. Not fine at all, but slower because not as friable. For me this is like a medium stone.
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And then the odd balls. They could be hard arks too. Like I said the marketing is mushy. One place to look for good cheap specimens of these translucent/washita things is old Smith's Tri-Hones. Not saying they all have them. But I have had good luck with the older wooden ones. I have had three with similar material 2 6" and 1 8".
These are two of them. I call them washita because I have had a bunch of ancient giant calico washitas that they remind me of. Smith's probably called them hard arks.
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