The Dot Mordenite showing is located on the western shore of the Nicola River, approximately 29 kilometres northwest of Merritt.

The area is underlain by intermediate and felsic volcanic and volcanoclastic rocks that are correlated with the Spences Bridge Group rocks of Cretaceous age. In the volcanic rocks, zeolite amygdules, joint fillings and matrix replacements are widespread. Restricted to the lenses of waterlain felsic tuff and tuffaceous sediments, such as the Dot member.

Locally, cycles of crystallithic tuff grading up through several metres to zeolitized ash were deposited in a lacustrine environment. The assemblage of mordenite-analcime-quartz suggests that sodium-rich waters, perhaps developed in a playa lake setting, were responsible for the zeolitization.

The Dot claims cover ground originally staked in 2003. Previous work in the area covered by the property outlined zones of alteration and anomalous geochemistry typical of an industrial zeolite system.

In 2008, sampling of massive mordenite returned values up to 72.6 micrograms per 100 grams cation exchange capacity (Assessment Report 30607).