The area lies within the Shuswap Metamorphic Complex along the eastern margin of the Frenchman Cap Dome. The core of the dome is composed of a mixed paragneiss and orthogneiss succession of probable Aphebian age, and is mantled by an unconformably overlying succession of metasedimentary rocks. The metasediments are comprised of micaceous schist, hornblende gneiss, calc-silicate gneiss marble, quartzite, and impure marble.

The kyanite occurs within schists and gneisses containing mica, quartz, feldspar and garnet. The greyish-blue flat crystals, are up to 8 centimetres long, and compose up to 20 per cent of the rock.