Hand Sample Missing
Thin Section Missing

Quartz Trachyte

IUGS Definition ( QAPF Chart )

Quartz Trachyte: “A volcanic rock consisting of phenocrysts of alkali feldspar and quartz in a cryptocrystalline or glassy matrix. It is the volcanic equivalent of quartz syenite.”
Photos
Chemistry
Typical Minerals
  • MINERAL
  • MINERAL
  • MINERAL
  • MINERAL
  • ACCESSORY MINERALS