The Sunset mica occurrence is located on the southeast 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 regionally metamorphosed to the kyanite zone of the amphibolite facies. The showing is described as consisting of "small veins" composed largely of quartz and muscovite, but no "marketable" mica was observed in place on the property (Geological Survey of Canada Summary Report 1927, Part A, page 33A). Refer to the Family Farm occurrence (094C 034), located 7.9 kilometres north, for further details of these regionally occurring mica-bearing pegmatite occurrences.

In 2005, Guardsmen Resources Inc. acquired the Mica Peak property, which covers the Sunset 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.