Pumice forms from globules of lava that are full of gas bubbles. Those bubbles are still present when the lava solidifies.
In areas of past or present explosive felsic volcanism
Pumice geodes are typically found in volcanic regions where pumice is present, such as areas with active or former volcanic activity. Geode shops, rock and mineral shows, and online retailers specializing in geological specimens may also carry pumice geodes for sale.
Pumice can be white, gray, or even pink.
Pumice - of volcanic origin - is not an intentional additive to food. It could be present, just like any dirt might be - in agricultural products grown in volcanic soils. Now, if you are referring to tomato pumice - which is a waste product of tomato juice production - that can sometimes be found in pet foods.
how did pumice get here
No. Pumice is inorganic.
No. Pumice does not have grains.
Pumice.
Yes. Pumice is defined as being highly vesicular.
Pumice is found after volcanic eruptions producing lava.
yes pumice is an igneous rock.