The Ravenal mica occurrence is located on the south side of Mount Henri, 80 kilometres north of the community of Germansen Landing.

Hostrocks are pegmatites within mica schists, gneisses and quartzites of the Neoproterozoic Ingenika Group which have been metamorphosed to the kyanite zone of the amphibolite facies of regional metamorphism. Two small pegmatite veins, 1 metre and 50 centimetres wide respectively, are exposed on a vertical cliff. The veins are mainly quartz, with mica of "good grade" (Geological Survey of Canada Summary Report 1927, Part A, page 33).

All mica-bearing pegmatites in the area are reported to be formed of feldspar and quartz with small amounts of pyrite, tourmaline, and garnet. The tourmaline occurs as small, well formed, jet-black crystals frequently arranged in rosettes, and commonly found in the country rocks adjoining the pegmatites. The garnets are bright ruby-red in colour.

In 2005, Guardsmen Resources Inc. acquired the Mica Peak property, which covers the Ravenal showing, in hopes that appreciable rare earth elements may be found in association with pegmatite zones. During a 1996 visit, heavy snowfall limited exploration to stream silt sampling. Unfortunately, exploration in 2007 was limited to the westernmost part of the property. In 2010, Guardsmen Resources Inc. conducted a two-day reconnaissance silt and rock geochemical sampling program; two mineral prospects, Family Farm (094C 034) and Birthday (094C 124), were briefly examined.