sedimentary
Green Jasper with Quartz Vein
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness 6.5 to 7 on the Mohs scale, dull to vitreous luster, opaque green color featuring a distinct white quartz vein, and a conchoidal fracture.
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Physical properties
Hardness 6.5 to 7 on the Mohs scale, dull to vitreous luster, opaque green color featuring a distinct white quartz vein, and a conchoidal fracture.
Formation & geological history
Formed through the silification of sedimentary or volcanic rocks, where silica-rich fluids precipitated microcrystalline quartz in fractures over millions of years.
Uses & applications
Used primarily in lapidary arts, making cabochons, carved ornaments, and as a collectible specimen.
Geological facts
Jasper has been used since ancient times for talismans, seals, and weaponry components due to its toughness.
Field identification & locations
Identify by its hardness, lack of cleavage, and waxy luster; commonly found in riverbeds and mountainous regions worldwide.
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