Asbestos occurs as dark green to yellow green cross fibre chrysotile in short veinlets that pinch and swell abruptly. The veinlets occur in parallel swarms in scattered parallel zones 20 to 60 centimetres wide. The zones are widely spaced and strike north across a small irregularly elongate serpentinite mass, 240 metres wide by 600 metres long, that is probably correlative with the Permian and older Shulaps Ultramafic complex. The serpentinite is cut by numerous thin irregular granodiorite dykes; the surrounding rock is predominantly granodiorite of the Jurassic to Tertiary Coast Plutonic Complex except for small patches of sediments reported to the southeast. The average fibre length of the chrysotile is 0.32 centimetres, with rare 1.27 centimetre material. The overall fibre content of the serpentine is considered very low.