Where is Red Jasper with Quartz found?
SiO2 (Jasper is a variety of Chalcedony, a microcrystalline Quartz)
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Open the appRed Jasper with Quartz 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 Red Jasper with Quartz
United States
Oregon (Biggs Jasper), California, Idaho, Arizona, Washington, Wyoming (various jasper types).
India
Known for various types of jasper, including red varieties.
Australia
Pilbara region (Banded Iron Formations containing jasper).
Brazil
Various localities for chalcedony and jasper.
Madagascar
Known for diverse ornamental stones, including jasper.
Russia
Ural Mountains (Orsk Jasper, often red).
Collecting tips
- Look in areas with volcanic activity or sedimentary deposits. Jasper often forms in association with volcanic rocks or in sedimentary environments where silica-rich fluids were present.
- Check stream beds and gravel pits. Jasper is very hard and resistant to weathering, so it can be found as pebbles and cobbles in alluvial deposits.
- Examine exposed rock faces. Look for veins, nodules, or massive beds of red, opaque material, especially where there are visible crystalline quartz inclusions or veins.
- Use a hardness test. Jasper and quartz are both hard (Mohs 6.5-7), so they will scratch glass and steel. This helps differentiate them from softer red minerals.
Quick Check
- Color:
- Opaque red with potential clear/white/gray quartz inclusions.
- Luster:
- Dull to waxy for jasper, vitreous for quartz.
- Streak:
- White (for both jasper and quartz).
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