How to pronounce “basaltic” in English

This little bleb here-- well, it's not really a bleb-- this, I guess, an iridescence, a pocket of iridescence is weathering of the lava.So basaltic lava in particular contains a lot of iron and magnesium, and those materials can oxidize when they're in contact with air.So this lava in this picture is just a few months old, and that beauty, that up-close beauty, the whole iridescence