Rock Identifier
Crazy Lace Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary
sedimentary

Crazy Lace Agate

Silicon Dioxide (Chalcedony), SiO2

AI-generated identification · may be incorrect

Hardness of 6.5 to 7 on the Mohs scale, waxy luster, and trigonal crystal system. Exhibits vibrant multicolored banding in complex, chaotic patterns of white, grey, yellow, and red.

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Physical properties

Hardness of 6.5 to 7 on the Mohs scale, waxy luster, and trigonal crystal system. Exhibits vibrant multicolored banding in complex, chaotic patterns of white, grey, yellow, and red.

Formation & geological history

Formed within cavities of volcanic and metamorphic rocks through the rhythmic deposition of silica-rich groundwater solutions over millions of years.

Uses & applications

Widely used in ornamental carvings, polished cabochons for jewelry, and as a popular specimen for mineral collectors.

Geological facts

Known as the 'Earth Rainbow' due to its vibrant and intricate swirling patterns. Primarily sourced from the Chihuahua state in Mexico.

Field identification & locations

Identified by its distinctive folded, lace-like banding and conchoidal fracture. Found in arid regions associated with ancient volcanic activity.