Geology, mineralization, and fluid inclusion
Smallmicrocline phenocrysts locally contain fine perthites but most microcline phenocrysts are perthitefree and not twinned. Mirmekites and graphic intergrowths of quartz and feldspars are common. Accessory minerals includeilmenite, magnetite, titanite, apatite, zircon, allanite, tourmaline, and scheelite. 5