Rock Identifier
Leopardskin Jasper (Silicon dioxide with iron and other mineral impurities (Microcrystalline Quartz)) — sedimentary
sedimentary

Leopardskin Jasper

Silicon dioxide with iron and other mineral impurities (Microcrystalline Quartz)

AI-generated identification · may be incorrect

Hardness of 6.5 to 7 on the Mohs scale, varying red, brown, black, and tan colors with distinctive orbicular patterns, waxy to vitreous luster, and cryptocrystalline structure.

Identified More sedimentary →
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Physical properties

Hardness of 6.5 to 7 on the Mohs scale, varying red, brown, black, and tan colors with distinctive orbicular patterns, waxy to vitreous luster, and cryptocrystalline structure.

Formation & geological history

Formed from silica-rich hydrothermal fluids or volcanic ash depositing in cavities and fractures, solidifying over millions of years.

Uses & applications

Used primarily for making cabochons, beads, carvings, and ornamental lapidary items.

Geological facts

Also known as leopard stone, this variety of jasper is prized for its unique spotted patterns resembling feline coats.

Field identification & locations

Identified by its distinct multicolored spots and orbicular inclusions; commonly found in Mexico, Brazil, and parts of Africa.