| This sample contains large plagioclase and pyroxene crystals, some of which have a sponge-like texture. |
| Geochemically, the pyroxene nephelinite is highly enriched in LILE compared with the first one. |
| In practice many basalts also contain easily visible crystals of feldspar, pyroxene, olivine, or amphibole. |
| Therefore, pyroxene is the next mineral to start forming after olivine. |
| The rock was of garnet gneiss, traversed by black dykes of pyroxene granulite. |
| Major mineral phases include plagioclase and pyroxene, with small amounts of opaque minerals, olivine, apatite, and sometimes biotite. |
