The Jade King occurrence is located 100 metres southeast of the Coquihalla Highway, approximately 14 kilometres northwest of Hope. A small amount of nephrite jade was reportedly mined from a rock quarry at this site.
The deposit occurs along the eastern margin of a belt of argillite, chert and mafic volcanics of the Permian to Jurassic Hozameen Complex that extends southward along the east side of the Fraser River and into the United States. The eastern margin of the belt is marked by the Hozameen fault, which juxtaposes ultramafics of the Coquihalla Serpentine Belt against the Hozameen Complex in the vicinity of the Coquihalla River.
Jade occurs in serpentinite-filled fault zones cutting Hozameen Complex ribbon cherts and basaltic volcanics. One such zone exposed in the old rock quarry, the West zone, trends northward and pinches and swells over short distances. Widths vary from 0.5 metre to in excess of 1.5 metres. The zone can be subdivided as follows from west to east: highly altered chert and quartz lenses and veins;, minor pyrite; talc and serpentinite; nephrite jade seams and lenses; serpentinite; and altered basaltic volcanics and chert.
The serpentinite is comprised of black to dark- green, highly sheared and abundantly slickensided, massive to foliated serpentine. Near the surface, jade is recovered as plates 2 to 5 centimetres thick. The jade consists of apple-green, translucent, fracture free, mottled nephrite of jewelry grade with very few impurities.
R. Fulbrook of Vernon periodically quarried jade from this deposit between the late 1970s and 1987 but no production figures are available. In 1971, an airborne magnetic survey was completed on the area.
In 1988, Osirius Enterprises Ltd. carried out trenching, prospecting and geological mapping. Extensive trenching and limited production of bedrock jade was completed in 1991. At the same time, an investigation was made of the associated serpentinite, talc, soapstone and white rock alteration zones for their potential as industrial minerals; representative samples were quarried (Assessment Report 21545). Serpentinite was looked at for its use in the dimension stone market and soapstone for its use in carvings. Large quantities of superior grade soapstone are reported to be associated with the jade occurrence.
In 2011, Homegold Resources prospected the area. In 2012, New Caroline Gold completed 434.4 line-kilometres of combined electromagnetic, magnetic and radiometric airborne geophysical surveys on the area. In 2014, a photo-geological interpretation project was completed on the area.