The Barbara Ann showing is located 6 kilometres east of Armstrong, on the north side of Kendry Creek.

This area, east of the Okanagan Valley fault, is underlain by gneissic rocks of unknown age, metasedimentary rocks of the Proterozoic-Paleozoic Kootenay Assemblage and volcanic and sedimentary rocks of the Cambro-Ordovician Tsalkom Formation and the Upper Triassic to Lower Jurassic Nicola Group. All these units are probably in low-angle fault contact with each other. Middle Jurassic granitic plutons intrude the above rocks. Pegmatite bodies of Mesozoic or Cenozoic age intrude the Silver Creek Formation.

A peridotite sill of unknown age intrudes quartz mica schists (Kootenay Assemblage) and hosts talc mineralization within serpentinized sections. The 60-metre thick sill is at least 400 metres in length, is offset by a fault and may be related to the major low-angle faulting or to mafic volcanic rocks of the Tsalkom. The talc is found in sheared discontinuous lenses along with other alteration minerals including magnetite, magnesite, serpentinite, calcite, tremolite and actinolite. Alteration is stronger in the upper portions of the sill. A 4-metre sample from the quarry assayed 71 per cent talc, 14.5 per cent magnesite, 6.25 per cent magnetite and 2.5 per cent calcite (Minister of Mines Annual Report 1951).

The area was staked for talc in 1946. In 1950, a 39-tonne bulk sample was shipped. By 1951, a small quarry and several open cuts were completed. Local artists use the soapstone for sculpture.