mineral
Crazy Lace Agate
Chalcedony (SiO2)
Mohs hardness of 6.5-7. Features complex banded patterns in white, yellow, orange, red, and brown. Waxy to vitreous luster. Microcrystalline quartz structure. Conchoidal fracture.
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Physical properties
Mohs hardness of 6.5-7. Features complex banded patterns in white, yellow, orange, red, and brown. Waxy to vitreous luster. Microcrystalline quartz structure. Conchoidal fracture.
Formation & geological history
Formed in cavities of volcanic rocks or limestone via deposition from silica-rich groundwater. Often associated with the Cretaceous period in northern Mexico.
Uses & applications
Widely used as an ornamental stone, fashioned into cabochons for jewelry (as seen in the ring), and polished for collectors.
Geological facts
Often called the 'Laughter Stone' or 'Happy Lace' in metaphysical circles. The most famous deposits are in Chihuahua, Mexico.
Field identification & locations
Identified by its chaotic, swirling, intricately banded lace-like patterns. Common locations include Northern Mexico. Collectors look for pieces with tight, colorful banding and minimal inclusions or fractures.
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sedimentary
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Metamorphic
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metamorphic
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
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Mineral/Rock
Granite
Granite (Phaneritic intrusive igneous rock)
igneous