sedimentary

Poppy Jasper

Microcrystalline Quartz (SiO2) with hematite and other inclusions

Hardness: 6.5-7 on the Mohs scale; Color: Red, brown, and pink with dark or black orbicular spots resembling poppy flowers; Luster: Vitreous to dull; Crystal structure: Trigonal (microcrystalline/cryptocrystalline); Cleavage: None (conchoidal fracture); Specific gravity: 2.58-2.91

Hardness: 6
Luster: Vitreous to dull

Identified August 1, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed by the precipitation of silica-rich fluids in sedimentary environments or volcanic cavities, often replacing organic material or filling fractures over millions of years.

Uses & applications

Used primarily in lapidary arts, tumbled stones, cabochons for jewelry, and ornamental carvings.

Geological facts

Poppy Jasper is a unique variety of jasper known for its distinctive orbicular patterns that look like poppy flower petals. It is found predominantly in locations such as Morgan Hill, California.

Field identification & locations

Identified by its reddish-brown background and distinctive dark orbicular markings. Collectors find it in alluvial deposits and specific rock formations in California and other jasper-rich regions.

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