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[–] 6 points 4 weeks ago (1 child)

No, natural pumice holds moisture which turns to steam under heat and explodes from the pressure.

The only safe pumice is manufactured bricks made from pumice.

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  • [–] 3 points 4 weeks ago

    We used to do this at the house of a fellow youth organization member. They had a fire pit, lava rocks in the topiary beds, and a pool. We'd soak some rocks and then throw them in the fire. It would make a loud pop and we'd all laugh about how funny the "ash" felt when it hit us. And then one of the kids started screaming...

    Fortunately, he only got a tiny piece in his eye, but the homeowners were like, "it's harmless fun, that happens sometimes." We stopped having gatherings at that house.

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