Collection 24 Volcanic Rocks and Minerals

Description Collection of 24 volcanic rocks and minerals The collection contains volcanic rocks and minerals. The collection contains: Volcanic rocks: basalt, phonolite, pitchstone, rhyolite Lava: Lava from Vesuvius, basaltic lava and rhyoltic lava Pyroclasts: lapilli, volcanic ash, pumice stone Minerals: anorthite, anorthoclase, augite, cristobalite, hauyne, leucite, natrolite, nepheline, pickeringite, sanidine, sulphur, thaumasite, tridymite, obsidian.