Most pumice erupts from magmas which can be really charged with gas and have a rhyolitic composition. Hardly ever, pumice can erupt from gas-billed magmas of basaltic or andesitic composition. Porosity: Pumice is very porous, with around 90% of its volume consisting of empty Areas, which makes it a fantastic https://maroonbookmarks.com/story19327776/considerations-to-know-about-pumice-stone