sedimentary
Rainforest Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectMohs hardness of 6.5 to 7. Green, brown, and cream coloration with orbicular patterns and cavities. Vitreous to waxy luster with cryptocrystalline structure.
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Physical properties
Mohs hardness of 6.5 to 7. Green, brown, and cream coloration with orbicular patterns and cavities. Vitreous to waxy luster with cryptocrystalline structure.
Formation & geological history
Formed from silica-rich hydrothermal solutions filling gas bubbles in ancient volcanic lava flows.
Uses & applications
Widely cut and polished into cabochons for jewelry, decorative objects, and lapidary collections.
Geological facts
Also known as Rainforest Rhyolite, though it is technically a spherulitic jasper. It exhibits unique orbicular structures formed by mineral crystallization.
Field identification & locations
Easily identified by its distinctive green and brown orbicular patterns, primarily mined in Western Australia.
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