igneous
Rainforest Jasper
Rhyolite (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, with a vitreous to dull luster and a microcrystalline structure. It displays distinct orbicular patterns in green, brown, and cream colors.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, with a vitreous to dull luster and a microcrystalline structure. It displays distinct orbicular patterns in green, brown, and cream colors.
Formation & geological history
Formed from silica-rich volcanic lava that cooled rapidly in subterranean chambers or surface flows, creating spherical spherulites over millions of years.
Uses & applications
Primarily used in lapidary arts for cabochons, polished display specimens, carvings, and unique jewelry pieces.
Geological facts
Also known as Rainforest Rhyolite or Australian Green Jasper, it is not a true jasper but a type of volcanic rock with quartz inclusions.
Field identification & locations
Easily identified by its unique orbicular green and brown spots; commonly sourced from Western Australia and various volcanic regions worldwide.
