sedimentary
Tumbled Green Jasper
Silicon Dioxide (Microcrystalline Quartz), SiO2
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, opaque green color, waxy to vitreous luster, and a trigonal crystal structure. It features a conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, opaque green color, waxy to vitreous luster, and a trigonal crystal structure. It features a conchoidal fracture with no true cleavage.
Formation & geological history
Formed through the chemical precipitation of silica in marine environments or the silicification of sediments, occurring over millions of years.
Uses & applications
Used primarily in lapidary arts, wire-wrapped jewelry, decorative polished stones, and holistic crystal collections.
Geological facts
Jasper has been used since ancient times for talismans and seals due to its durability and rich color variations. It is a dense, microcrystalline variety of quartz.
Field identification & locations
Easily identified by its hardness, smooth tumbled feel, and lack of cleavage. Commonly sourced from riverbeds, gravel deposits, and global mining localities.
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