The Amethyst showing is located west of the Monte Cristo (L.344) claim (MINFILE 092K 022) on the western shore of Phillips Arm, approximately 500 metres northwest of Hewitt Point.

The area is underlain by a persistent band, greater than 12 kilometres long, of stratified metavolcanic and metasedimentary rocks of the Upper Triassic Quatsino and Karmutsen formations (Vancouver Group). The band trends northwest and separates Jurassic to Cretaceous Coast Plutonic Complex rock of two different compositions, diorite and granodiorite.

Locally, shearing has developed within the metasedimentary and metavolcanic package parallel to bedding. Bedding strikes 290 degrees with an 80 degree dip to the north. Lithologies include biotite schist, quartzite, pyritic schist, wacke, and marble.

Two adits, a series of open cuts and a shaft were completed prior to 1922 to examine a structurally controlled quartz vein.

A sample from the dump outside one of the adits assayed 3.5 per cent copper, 82.272 grams per tonne silver, and trace gold (Minister of Mines Annual Report 1922, page 210).

More recent assay samples were obtained from a pit (or open cut) near the shaft. The best assay in 1981 was from a 2 to 5 kilogram chip sample (F-29) of massive sulphides that assayed greater than 2 per cent copper, 0.13 per cent molybdenum, greater than 50 grams per tonne silver and 6.2 grams per tonne gold (Assessment Report 9665).

The area was originally explored in the late 1890’s in conjunction with the nearby Doratha Morton (MINFILE 092K 023) mine. Numerous pits and shafts were completed in the area during the early 1900’s. In 1981, Long Lac Mineral Exploration completed a program of rock and soil sampling, geological mapping and a 14 line-kilometre ground magnetic survey on the area as the Fanny claims. In 1983, Bute Joint Venture completed a program of rock and soil sampling, geological mapping and ground magnetic and electromagnetic surveys on the area as the Koop and Strider claim groups. The area was prospected as the Cordero property in 1991 and 1992 by Ripple Creek Resources. In 2008, Cuda Capital completed a 561.4 line-kilometre airborne magnetic survey on the area.