mineraloid
Pink Opal
Hydrated amorphous silica (SiO2·nH2O)
AI-generated identification · may be incorrectHardness of 5.5 to 6.5 on the Mohs scale, pink to pale rose color, waxy to pearly luster, and amorphous crystal structure with conchoidal fracture.
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Physical properties
Hardness of 5.5 to 6.5 on the Mohs scale, pink to pale rose color, waxy to pearly luster, and amorphous crystal structure with conchoidal fracture.
Formation & geological history
Forms at low temperatures from silica-rich aqueous solutions in volcanic or sedimentary environments.
Uses & applications
Used primarily for making ornamental gemstones, cabochons, carved objects, and holistic jewelry.
Geological facts
Unlike precious opal, pink opal typically lacks play-of-color and gets its pastel hue from microscopic inclusions.
Field identification & locations
Identified by its distinctive pink color and lack of cleavage; commonly sourced from Peru, Australia, and Mexico.
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