Lava Boats - Can They Float on Lava?

Pumice is a type of volcanic rock that has the strange distinction of being so low in density that it can often actually float on the surface of water. The process leading to the formation of pumac during an eruption is pretty similar to what happens when you open a carbonated beverage, except it involves an extra step which is sort of freezing and froamy product. And then there is a rapid pressurization where there is rapid de-pressurization now because the magma beneath the earth's surface is under high pressure. So this one puts us in places that are just as awesome and weird as looking at the lake of lava and imagining floating on it. Let's do it