The Alimona Quartzite occurrence is located between Glacier Creek and the Duncan Lake road on the southeast side of Duncan Lake, in the Slocan Mining Division.

Regionally, the area lies within the Kootenay Arc near the margins of the Ancestral North American Terrane. The Kootenay Arc is a curving belt of highly deformed metasedimentary and metavolcanic rocks which includes the Upper Proterozoic Horsethief Creek Group, the Eocambrian Hamill Group, the Lower Cambrian Badshot Formation, and the lower Paleozoic Lardeau Group. The volcano-sedimentary sequence is intruded by numerous Ordovician, Devonian and Mississippian granitoid plutons. The rocks have undergone regional metamorphism to middle or upper greenschist facies (Paper 1993-1).

This area, on the east side of Duncan Lake, is underlain by metasedimentary rocks of the Hamill Group and Badshot Formation which are warped into a series of north to northwest-trending folds. At the quarry, the strata strike 165 degrees and dip 65 degrees east.

Micaceous quartzite of the Hadrynian to Lower Cambrian Marsh Adams Formation (Hamill Group) is quarried seasonally by Porcupine Mines Ltd. of Salmo to produce flagstone for building facings and a variety of other architectural and decorative purposes. No production figures are available.