Coarse-grained kyanite has been reported from the Creston area (McCammon, 1965) in Helikian Purcell Supergroup micaceous quartzites and mica schists with minor pegmatite. At the Mike occurrence, kyanite forms clean, bladed crystals in clumps 15 to 20 centimetres in diameter associated with the pegmatites, which occur as irregular masses 30 centimetres by 1 metre to 2 by 10 metres in size. Kyanite is also disseminated throughout the schists and micaceous quartzites, where crystals vary from small needles to 1 by 5 centimetres in size (McCammon, 1964).
The Mike occurrence is close to the main Salmo-Creston highway, at low elevations, and near Creston. The best area of pegmatites and kyanite is found over an area 75 metres wide by 105 metres long. Further kyanite is reported on the south side of Summit Creek, across the valley from the Mike, by Brown et al. (Fieldwork 1994, page 138).