igneous
K2 Jasper (K2 Granite)
Granite with Azurite inclusions (SiO2 + Cu3(CO3)2(OH)2)
Hardness: 6-7 on Mohs scale (granite matrix); Color: White to light grey matrix with distinct bright blue or purple circular spots; Luster: Vitreous to dull; Crystal Structure: Monoclinic (azurite) within fine-grained quartz-feldspar matrix
- Hardness
- 6-7 on Mohs scale (granite matrix)
- Luster
- Vitreous to dull
Identified More igneous →
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Physical properties
Hardness: 6-7 on Mohs scale (granite matrix); Color: White to light grey matrix with distinct bright blue or purple circular spots; Luster: Vitreous to dull; Crystal Structure: Monoclinic (azurite) within fine-grained quartz-feldspar matrix
Formation & geological history
Formed at high altitudes near the base of K2, the world's second-highest peak in Pakistan. The white granite matrix formed igneous activity, while secondary azurite formed later from copper-bearing fluids penetrating micro-fractures.
Uses & applications
Popular as a gemstone, lapidary material for cabochons, polished tumbled stones, beads, and metaphysical crystal collecting.
Geological facts
Despite its trade name 'K2 Jasper', it is not a true jasper (sedimentary chalcedony), but rather a granite composed of quartz, plagioclase feldspar, and muscovite with orbicular blue spots of azurite.
Field identification & locations
Identify by looking for bright blue, ink-like orbicular dots floating inside a white-and-grey speckled granitic host rock. Found primarily in the Gilgit-Baltistan region of Pakistan.
