• CanadaPlus@futurology.today
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            3 months ago

            Yeah, sand definitely is much harder than teeth (which in a normal vertebrate are based on apatite, at a Mohs hardness of 5). If it’s abrasion, that explains a bit, although it’s going to be much slower than an actual cutting action. A quick search indicates cement is at Mohs 5-7, so you theoretically could chew through an unusually soft sample.

            • acockworkorange@mander.xyz
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              3 months ago

              It absolutely abrades the teeth faster than the cement, but rats are very social creatures. The point is that the Tupperware doesn’t stand a chance against even a single rat.