| Name | Porphyritic Rhyolite |
| Texture | Porphyritic |
| Origin | Extrusive/Volcanic |
| Chemical Composition | Felsic |
| Color | Light Green |
| Mineral Composition | Potassium Feldspar, Quartz, Sodium Plagioclase, Biotite, Hornblende |
| Miscellaneous | Potassium Feldspar and Quartz Phenocrysts in an aphanitic (fine-grained) groundmass |
| Tectonic Environment | Convergent Boundary - Andean-type subduction zones, intracontinental hot spots and rifts |
