Template:Basalt From Wikipedia the free encyclopedia vteTypes of basaltsBasalts by tectonic setting Flood basalt Mid-ocean ridge basalt Ocean island basalt Volcanic arc basalt Basalts by form and flow Columnar basalt Pillow basalt Aa lava Pahoehoe lava Basalts by chemistry Tholeiitic basalt Calc-alkaline basalt Alkali basalt Trachybasalt Hawaiite Mugearite Picrite basalt Important minerals Olivine Pyroxene Plagioclase Amphibole Magnetite Ilmenite Quartz Cristobalite Tridymite Geology portal