Page:South African Geology - Schwarz - 1912.djvu/64

 {| class="wikitable" ! rowspan=2| !! rowspan=2|Acid with Quartz. !! colspan=2|Intermediate. !! rowspan=2|Basic, with Iron Ores. !! rowspan=2|Ultra-basic. ! Potash Felspar. !! Lime-soda Felspar.
 * Plutonic (large crystals). || Granite. || Syenite. || Diorite. || Gabbro (norite). || Meteorites.
 * Dyke (small crystals). || Quartz-porphyry || Felspar-porphyry || Porphyrite. || Dolerite (diabase, altered dolerite). || —
 * Volcanic (with uncrystallized glass). || Rhyolite (obsidian and pumice) || Trachyte. || Andesite. || Basalt (melaphyre, altered basalt). || Melilite Basalt, (Kimberley blue ground, altered melilite basalt).
 * }
 * Volcanic (with uncrystallized glass). || Rhyolite (obsidian and pumice) || Trachyte. || Andesite. || Basalt (melaphyre, altered basalt). || Melilite Basalt, (Kimberley blue ground, altered melilite basalt).
 * }
 * }