mineral
Pink Opal
Hydrated amorphous silica (SiO2·nH2O)
AI-generated identification · may be incorrectHardness of 5.5-6.5 on the Mohs scale, pale pink to lavender color with distinct dark dendritic inclusions, waxy to vitreous luster, and no cleavage.
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Physical properties
Hardness of 5.5-6.5 on the Mohs scale, pale pink to lavender color with distinct dark dendritic inclusions, waxy to vitreous luster, and no cleavage.
Formation & geological history
Formed from silica-rich solutions deposited in low-temperature cavities and fissures in volcanic or sedimentary rocks, often originating in arid environments like the Andes of Peru.
Uses & applications
Widely used in high-end jewelry, carvings, and cherished as a collector gemstone for its soothing aesthetic appeal.
Geological facts
Unlike precious opal, common opal like pink opal lacks play-of-color due to the lack of ordered internal microspheres, and the dark fern-like patterns are manganese oxide dendrites.
Field identification & locations
Identified by its opaque pink body tone and characteristic dark dendrites, it is commonly sourced from Peru and Australia, though similar chalcedony can be found worldwide.
