Pearl
About
Pearls are organic gemstones formed within the soft tissue of mollusks, primarily oysters and mussels. Their iridescent surface results from layers of nacre, a combination of aragonite and conchiolin. Pearls can be natural, cultured, or imitation and occur in a range of colours, including white, cream, pink, black, and golden. Major sources include Japan, China, Australia, and French Polynesia.
Birthstones & Anniversaries
Pearl is the birthstone for June and is traditionally given for the 3rd and 30th anniversaries, symbolising purity, wisdom, and integrity.
Crystal Healing Energy
The overarching theme of pearls is purity and emotional balance. Associated with the energy of the ocean, pearls are believed to calm emotions, promote self-reflection, and encourage wisdom. Their soothing energy is thought to enhance patience, nurture love, and bring a sense of peace and clarity, making them a popular choice for spiritual growth and emotional healing.
Facts
Natural vs. Cultured: Natural pearls form without human intervention, while cultured pearls are farmed by implanting a nucleus into the mollusk.
Saltwater vs. Freshwater: Saltwater pearls (e.g., Akoya, Tahitian) are generally more lustrous, while freshwater pearls come in a wider variety of shapes and colours.
Historical Significance: Pearls were once reserved for royalty and were considered the ultimate symbol of wealth and status in ancient cultures.
Formation Time: It can take 6 months to several years for a mollusk to produce a pearl.
Environmental Sensitivity: Pearls are porous and sensitive to chemicals, heat, and acids, requiring special care.
Science
Type: Organic gemstone
Composition: Aragonite (CaCO₃) and conchiolin
Structure: Amorphous
Colour: White, cream, pink, black, golden, and more
Refractive Index: 1.530 to 1.685
Specific Gravity: 2.60 to 2.85
Mohs Hardness: 2.5 to 4.5
TreatmentsCultured pearls often undergo treatments such as bleaching to enhance their colour and lustre. Dyes may also be used to produce vibrant colours, and some pearls are coated to improve their appearance.
SyntheticsSynthetic pearl is not produced due to their organic nature, instead they are farmed and cultured by implanting a nucleus into the mollusk.
ImitationsImitation pearls, often made from glass or plastic, are widely available. While they mimic the appearance of pearls, they lack the organic composition and feel of real pearls.
similar materialsMother-of-Pearl: The inner shell layer of mollusks, which has a similar lustrous appearance but is flat and used for inlays and decorations.
Shell Pearls: Made from crushed shell material and coated to resemble natural pearls.