gemstone
Dyed Cracked Agate
Silicon Dioxide (Quartz variety, SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, vitreous to waxy luster, microcrystalline crystal structure, conchoidal fracture, and specific gravity around 2.6.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, vitreous to waxy luster, microcrystalline crystal structure, conchoidal fracture, and specific gravity around 2.6.
Formation & geological history
Formed by the deposition of silica from groundwater in cavities of igneous and sedimentary rocks, subsequently heat-treated and artificially dyed.
Uses & applications
Widely used in jewelry, lapidary arts, decorative items, and as a popular specimen for mineral collectors.
Geological facts
Heating and rapid cooling create internal fractures (craquelure) which absorb vibrant dyes, mimicking rare natural stones.
Field identification & locations
Identified by its vivid unnatural purple coloration concentrated within internal fracture networks; commonly found globally in processed gemstone markets.
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