Where is K2 Jasper found?
Granite with Azurite inclusions
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Open the appK2 Jasper occurs in specific geological environments. Knowing where to look, and in what kind of rock, is the difference between going home empty-handed and finding a great specimen.
Where to find K2 Jasper
Skardu area, Northern Areas, Pakistan
The primary and currently only known source, specifically from the foothills of K2 mountain in the Karakoram mountain range. This region is known for its complex geological history involving continental collision and associated magmatism and hydrothermal activity.
Collecting tips
- Visual Identification. Look for the characteristic white to light gray background with prominent, often circular or oval, bright blue spots. The blue color is distinctive of azurite.
- Hardness Test (Caution). The granitic matrix will be hard (Mohs 6-7). The azurite inclusions are softer (Mohs 3.5-4), so a careful scratch test on a hidden area might differentiate the blue spots from the matrix, but this is generally not recommended for finished pieces.
- Acid Test (Not Recommended for Collectors). Azurite (a carbonate) will effervesce with dilute hydrochloric acid, but this test is destructive and should only be performed by professionals on small, non-valuable samples.
- Distinguishing from Fakes. Be wary of dyed stones. Genuine K2 Jasper's blue spots are typically well-defined and often have a slightly granular or crystalline appearance under magnification, unlike uniformly dyed material.
Quick Check
- Color:
- White/gray matrix with bright blue spots
- Luster:
- Vitreous to dull (matrix), dull to earthy (azurite)
- Streak:
- White (matrix), light blue (azurite - rarely observed)
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