mineral
Blue Chalcedony with Pyrite
SiO2 with FeS2
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, waxy luster, light blue to greyish color with metallic pyrite inclusions, and microcrystalline trigonal structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, waxy luster, light blue to greyish color with metallic pyrite inclusions, and microcrystalline trigonal structure.
Formation & geological history
Formed in low-temperature hydrothermal environments or volcanic cavities where silica-rich groundwater deposits microcrystalline quartz, completely consistent with the geology of central Iran.
Uses & applications
Used primarily in lapidary arts, metaphysical crystal healing, and as a collectible decorative specimen.
Geological facts
Chalcedony has been used since antiquity for intaglios and seals, and specimens combining blue chalcedony with metallic pyrite are particularly striking.
Field identification & locations
Identified by its conchoidal fracture, waxy luster, and distinct metallic pyrite patches; commonly found in cavities of volcanic rocks worldwide.
