gemstone
Imitation or Cultured Pearl Earrings
Calcium carbonate (CaCO3) or synthetic polymer/glass
AI-generated identification · may be incorrectHardness 2.5–4.5 (or softer if plastic); pearlescent to vitreous luster; white to cream color; specific gravity ~2.6–2.78 (natural/cultured).
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Physical properties
Hardness 2.5–4.5 (or softer if plastic); pearlescent to vitreous luster; white to cream color; specific gravity ~2.6–2.78 (natural/cultured).
Formation & geological history
Cultured pearls form biogenetically in mollusks via secreted nacre layers; faux pearls are factory-produced from glass, ceramic, or plastic coated with pearl essence.
Uses & applications
Primarily utilized in jewelry manufacturing, fashion accessories, and decorative adornments.
Geological facts
Pearls are one of the few organic gemstones; cultured pearl farming was perfected by Kokichi Mikimoto in the early 20th century.
Field identification & locations
Real pearls typically feel gritty when gently rubbed against teeth and remain cool to the touch, whereas synthetic imitations feel completely smooth and warm quickly.
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