sedimentary
Crazy Lace Agate (Butterfly Carving)
Silicon Dioxide (Microcrystalline Quartz) - SiO2
Hardness: 6.5-7 Mohs; Color: Multi-colored swirls of red, ochre, gold, and grey; Luster: Waxy to vitreous; Crystal Structure: Trigonal (microcrystalline); Cleavage: None
- Hardness
- 6
- Color
- Multi-colored swirls of red, ochre, gold, and grey
- Luster
- Waxy to vitreous
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Physical properties
Hardness: 6.5-7 Mohs; Color: Multi-colored swirls of red, ochre, gold, and grey; Luster: Waxy to vitreous; Crystal Structure: Trigonal (microcrystalline); Cleavage: None
Formation & geological history
Formed in volcanic and sedimentary rock cavities through the deposition of silica-rich fluids over millions of years, typically during the Cretaceous period.
Uses & applications
Primarily used for ornamental purposes, lapidary art, jewelry, and as decorative carvings or 'metaphysical' stones.
Geological facts
Also known as Mexican Agate, it is renowned for its complex, lace-like patterns. Most high-quality specimens come from the state of Chihuahua, Mexico.
Field identification & locations
Identify by its intricate, wavy banding and high hardness. It is commonly found in specialized rock shops and online auctions as tumbled stones or carvings.
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