mineral
Crazy Lace Agate
SiO2 (Silicon Dioxide) - Chalcedony variety
Hardness of 6.5-7 on the Mohs scale. Colors include white, red, gray, brown, and yellow. Waxy to vitreous luster. Cryptocrystalline structure. No cleavage. Specific gravity of 2.58-2.64.
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Physical properties
Hardness of 6.5-7 on the Mohs scale. Colors include white, red, gray, brown, and yellow. Waxy to vitreous luster. Cryptocrystalline structure. No cleavage. Specific gravity of 2.58-2.64.
Formation & geological history
Forms in cavities of volcanic rocks through the deposition of silica from hydrothermal fluids. Commonly found in Mexico.
Uses & applications
Used primarily in lapidary for making cabochons, beads, carvings, and other jewelry or decorative items.
Geological facts
Known as the 'Laughter Stone' or 'Happy Lace' due to its complex and varied patterns that resemble lace.
Field identification & locations
Identified by its intricate, complex banding patterns combining multiple colors. Commonly found in Chihuahua, Mexico. Collectors look for pieces with tight, distinct lacy patterns.
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Mineral/Rock
Banded Gneiss (River Rock/Pebble)
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Metamorphic Rock
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Green Apatite on Albite
Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]
mineral