gemstone
Dyed and Crackle Agate
Silicon dioxide (chalcedony, SiO2)
AI-generated identification · may be incorrectHardness is 6.5-7 on the Mohs scale, with variable vibrant colors due to artificial dying, vitreous to waxy luster, and a microcrystalline structure with conchoidal fracture.
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Physical properties
Hardness is 6.5-7 on the Mohs scale, with variable vibrant colors due to artificial dying, vitreous to waxy luster, and a microcrystalline structure with conchoidal fracture.
Formation & geological history
Formed in cavities of volcanic and metamorphic rocks via hydrothermal silica deposition, later artificially heated, quenched to create internal fractures, and dye-infused.
Uses & applications
Widely used in affordable beaded jewelry, ornamental carvings, and holistic crystal crafts.
Geological facts
Natural agates are formed in concentric layers, but the distinct web-like cracking in these beads is produced by rapid thermal expansion and quenching.
Field identification & locations
Readily identified by unnatural, vibrant hues and a web-like network of internal fractures filled with dye. Common worldwide and sourced globally for lapidary work.
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