The above is maybe the most unusual object I saw in the archaeological cases in my visit to the Mayne Island museum. As you can see, it’s labelled as a “large stone abrader” and may well be, I suppose. It’s thin, an the reddish cast and sort of laminate structure of the rock makes me think it is schist, a material commonly used for flaked “slate” as well as for saws. If it’s an abrader, I’d say it’d be a saw, since no sign (on this face) of any smooth abraded areas. However, the general shape seems pretty elaborate for any abrader or saw from my experience. Maybe an elaborate ulu-style knife intended to be hafted across the neck. Or, what I was wondering when I was there, maybe triggered by a false association to the shape, was something like the ground slate mirrors from the North Coast. These would be polished to a sheen, then wetted, thus providing a reflection, and if memory serves (and it often doesn’t) were used in rituals more than for popping blackheads. But it doesn’t seem polished enough for that. All the same, the shape rings a bell and rather than spend too much time looking through old Syesis’s (Syeses? Syesisis?? ‘copies of the journal Syesis’ – phew) I’m throwing it out here for comment.
There’s a few other pictures form the museum below.