Nephrite jade, metamorphic rock, British Columbia. Jade is formed in metamorphic rocks called serpentinites. It often shows white alteration due to weathering. This jade is probably of Carboniferous age.
Nephrite jade, metamorphic rock, British Columbia. Jade is formed in metamorphic rocks called serpentinites. It often shows white alteration due to weathering. This jade is probably of Carboniferous age.
