The Myra occurrence is located south of Chemainus River, approximately 2 kilometres north east of the Hill 60 (MINFILE 092B 027) deposit.

The area is underlain by the Mississippian to Pennsylvanian Fourth Lake Formation of the Buttle Lake Group (formerly the upper sediment package of Muller's Myra Formation). Rhodonite occurs within a belt of cherts, cherty siltstones and cherty argillites. These beds are folded into a broad synform with the limb striking 175 degrees and dipping 60 degrees southwest at the occurrence. A quartz diorite contact lies about 20 metres southwest of the showing and it's possible that the rhodonite is a contact metamorphic product of a manganese-rich sediment.

Locally, a 1.5-metre thick horizon of rhodonite occurs discontinuously in lenses over a 45 metre length. The lenses are typically composed of massive blue-black manganese oxide with irregular patches of pale pink, massive, fine-grained crystalline rhodonite up to a few centimetres in diameter. Manganese oxide also occurs along the many fractures of the host grey cherts. The rhodonite itself is relatively un-fractured and probably formed after the deformation which caused the fracturing in the host cherts.

From 1986 through 1989, International Cherokee Development completed programs of geochemical sampling, geological mapping and ground geophysical surveys on the area as the Cow 8 claim. This work identified a second rhodonite showing in the area of the Myra occurrence. It is located approximately 80 metres east of the Cow 8 claim and comprises several lenses of rhodonite and massive black manganese oxide (up to 1 .5 metres wide and 5.2 meters long) occurring in two distinct horizons within a sequence of bedded cherty sediments. Samples previously collected from these lenses contained up to 31.90% manganese and 30 parts per billion gold (Assessment Report 18871).