K2 Jasper

K2" Jasper" is really a Azurite in an altered granite rock from Pakistan. Raman analysis by Garry Du Toit at GIA in Bangkok confirmed that the blue spots consist of azurite, which occur in a matrix of sodic plagioclase, quartz, and muscovite. (Details at the GIA Pgs 55-56)

K2 was highly debated when it first hit the scene and many people doubted how the azurite could get in there! One of mother natures many miracles! 

Since K2 jasper, a granite is a stone, it has many minerals within it. It's very hard but acid and skin oil sensitive. I have heard of the dots turning black with exposure to skin oils. I would make sure the back is coated with a protectant.