A polished crazy lace agate sphere from Chihuahua, Mexico, with dense, high-contrast banding in red-brown, cream, and charcoal. The lacework you see is a cross-section through millions of years of layering; each band marks a pulse of silica-rich fluid filling a cavity in volcanic rock. Because the sphere is cut from a solid nodule, the pattern wraps right around it, so every angle shows a different tangle of lines. Crazy lace comes from one region of northern Mexico and nowhere else commercially.
Mineral: Crazy lace agate (chalcedony, SiO₂)
Crystal system: Trigonal (microcrystalline)
Origin: Chihuahua, Mexico
Hardness: 6.5 to 7 on the Mohs scale; durable and easy to handle
Treatment: None
Diameter: 7.12 cm
Weight: 470 g
Note: Acrylic stand included (not the stand shown in the photo)
You'll receive the exact piece photographed.