mineral

Crazy Lace Agate

Chalcedony (SiO2)

Hardness: 6.5-7 (Mohs scale). Color: White, gray, red, brown, yellow with intricate banding. Luster: Vitreous to waxy. Crystal structure: Cryptocrystalline. Cleavage: None. Specific gravity: 2.58-2.64.

Hardness: 6
Color: White, gray, red, brown, yellow with intricate banding
Luster: Vitreous to waxy

Identified July 17, 2026More mineral →

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Physical properties

Formation & geological history

Forms in cavities of volcanic rocks or limestone through the deposition of silica-rich fluids. Often formed during the Cretaceous period.

Uses & applications

Commonly used in lapidary, jewelry making (cabochons, beads), and as ornamental stones for collectors.

Geological facts

Crazy Lace Agate is often called the 'Laughter Stone' or 'Happy Lace' in metaphysical circles. It is exclusively found in northern Mexico, primarily in the state of Chihuahua.

Field identification & locations

Identified by its complex, swirling, and zig-zag banding patterns. Commonly found in Chihuahua, Mexico. Collectors look for pieces with distinct, tight banding and good color contrast.