Most pumice erupts from magmas which are very billed with gas and also have a rhyolitic composition. Rarely, pumice can erupt from gas-billed magmas of basaltic or andesitic composition. Due to its porous structure, pumice is used in soil mixes for horticulture. It can help with water retention, aeration, and https://yourbookmarklist.com/story19588838/the-ultimate-guide-to-pumice-stone