The Blue River Feldspar showing is located approximately 3 kilometres west of the town of Blue River on the north side of the Blue River valley. A pegmatite dyke, hosted in gneissic rocks along the northern margin of the Paleozoic to Proterozoic Shuswap Metamorphic Complex, has been explored as a source of feldspar. The deposit was mapped and drilled by G.R. Guillet in 1984.

Three major stratigraphic units are recognized in the area; metasedimentary rocks of the Semipelite-Amphibolite, the Middle Marble and the Upper Clastic units of the Hadrynian Horsethief Creek Group. These units are regionally metamorphosed to upper amphibolite grade. A pegmatite body, approximately 10 by 4 kilometres in area, is located on the north side of Blue River and trends east-west. A south-southwest apophyses of this pegmatite body extends southerly towards the Blue River where it outcrops at this deposit. The pegmatite intrudes biotite-quartz-feldspar gneiss of the Hadrynian Horsethief Creek Group.

The pegmatite consists of a coarse assemblage of white feldspar and quartz with accessory muscovite. The dyke, which strikes northeast and dips vertically, has been traced along strike for 1475 metres with a width of 490 metres and is best observed in outcrop along the base of the north valley wall of the Blue River.

A drill hole encountered two pegmatite sections of 6.2 and 3.6 metres separated by gneiss before intersecting the main pegmatite zone at 26.2 metres depth. The drill hole was terminated at 40 metres still in pegmatite. The weighted average of three samples of drill core analyzed as follows after dry magnetic separation (Assessment Report 12892):

---------------------------
                    SiO2      - 74.4   per cent
                    Al2O3     - 14.7   per cent
                    Fe2O3     -  0.076 per cent
                    CaO       -  1.73  per cent
                    MgO       -  0.04  per cent
                    Na2O      -  3.89  per cent
                    K2O       -  4.53  per cent
                    MnO       -< 0.01  per cent
                    TiO2      -  0.01  per cent
                    P2O5      -  0.02  per cent
                    LOI       -  0.53  per cent
                    Chromium  - < 10 ppm
                    Rubidium  -  130 ppm
                    Strontium -  630 ppm
                    Yttrium   - < 10 ppm
                    Zirconium - < 10 ppm
                    Niobium   -  20  ppm
                    ----------------------------

Based on company results, the pegmatite contains feldspathic material which meets industry specifications for glass and ceramic applications.