How to pronounce “bleb” in English

And this middle section, I'm going to put the cursor on the mid-left portion of the screen and then slowly just drag it over to the right.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.