Kenneth Sims and other research scientists recently discovered that mafic volcanism of Henrys Fork Caldera -- located in ...

Plagioclase feldspar from Edison Butte rhyolite seen at 40x in doubly polarized light. Credit: Erik Klemetti That is a very quick look at how geologists examine rocks, at least using light.

District Metals Corp. (TSXV: DMX) (Nasdaq First North: DMXSE SDB) (OTCQB: DMXCF) (FSE: DFPP); ("District" or the "Company") ...