Aphanitic Andesite Rock
Dec. 23, 2024
image002.jpg Andesite: Igneous Rock - Pictures, Definition & More Engineering geology - Andesite Andesite – an intermediate, aphanitic igneous rock that is the extrusive equivalent of diorite. It is usually medium gray. The rock is named after the Andes Mountains, where Andesite Gemstone: Properties, Meanings, Value & Uses | Gem Rock Auctions | Aphanitic Andesite Rock