Pumice is an extrusive igneous rock that forms during explosive volcanic eruptions. It is lightweight and spongy, with a number of pore spaces scattered over it's surface. It is a buoyant material
Featherock - About Us
Rocks and minerals images
Grofry Pumice Stone Foot Care Wear Resistant Polyurethane Feet
Rocks and minerals images
Pumice Stone for Feet 2 Pack Natural Foot Scrubber Pummis Pumas
Pumice-like, gas bubbles, Blue-Gray : r/whatsthisrock
Pumice pebbles hi-res stock photography and images - Alamy
Rocks and minerals images
Walgreens Beauty Pumice Stone
Large Pumice Stone
Igneous Rock On White Background Hi-res Stock Photography, 59% OFF
My dad had this in a drawer for years. It isn't terribly heavy and
Igneous Rock On White Background Hi-res Stock Photography, 59% OFF