sedimentary
Poppy Jasper
Microcrystalline Quartz (SiO2) with mineral inclusions
Hardness of 6.5 to 7 on the Mohs scale, colors typically feature reddish-brown, tan, and cream orbicular patterns, vitreous to dull luster, cryptocrystalline crystal structure, conchoidal fracture, and specific gravity around 2.58 to 2.91.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, colors typically feature reddish-brown, tan, and cream orbicular patterns, vitreous to dull luster, cryptocrystalline crystal structure, conchoidal fracture, and specific gravity around 2.58 to 2.91.
Formation & geological history
Formed in sedimentary environments through the silica-rich replacement of organic or mineral material, often in volcanic or hydrothermal settings over millions of years.
Uses & applications
Widely used in lapidary arts, tumbled stones, cabochons for jewelry, carvings, and as a collectible specimen for rock enthusiasts.
Geological facts
Poppy jasper is famous for its distinctive orbicular patterns that resemble the petals of poppy flowers, often containing inclusions of hematite, goethite, or clay minerals that give it the characteristic warm red and brown tones.
Field identification & locations
Identified by its opaque nature, waxy luster when polished, and distinct orbicular 'poppy-like' dots or patterns. Commonly found in locations such as Morgan Hill, California, as well as various deposits globally.
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