Moonstone – a mineral with unique optical properties and a wide range of applications in jewelry

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Moonstone, also known as moonstone, is a mineral from the feldspar group, valued for its adularescence effect – a unique iridescent sheen that is created by the reflection of light on microscopic layers of the mineral.

It is found mainly in India, Sri Lanka, the United States, and Australia, where it is mined in the form of raw crystals and cut gemstones.

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Chemical and physical properties of moonstone

Moonstone is a variety of feldspar, consisting mainly of silica (SiO₂) with added aluminum, potassium, and calcium. Moonstone has a hardness of 6–6.5 on the Mohs scale, which means that it is moderately scratch-resistant and requires proper care. Its most common shades are milky white, blue, gray, and pinkish.

Optical properties and adularescence effect

The adularescence effect is a distinctive feature of moonstone – it is a blue or white glow that appears on the surface of the stone as a result of light scattering. This phenomenon increases the attractiveness of the stone in jewelry, especially in rings, necklaces, and earrings, where moonstone adds subtle elegance and a striking visual effect.

Moonstone in jewelry

Moonstone is popular in jewelry design, especially rings, necklaces, and earrings. Due to its medium hardness, it requires proper protection in the setting, which minimizes the risk of damage. The highest quality moonstones are transparent, without visible cracks, and have an intense blue adularescence, which increases their market value.

Moonstone is often used in alternative therapies and meditation due to its properties that are believed to aid concentration and emotional balance. Considered a mineral that promotes the development of intuition, moonstone is used as a support in practices related to mental and spiritual balance.

Due to its medium hardness, moonstone requires careful handling and storage. It is recommended to clean it with a soft brush and mild soap, avoid chemicals, and store it separately from harder minerals. This protects the stone from damage and preserves its striking luster.

Moonstone is often associated with zodiac signs such as Cancer, Libra, Scorpio, and Capricorn. In astrology, it is believed that this stone can support the development of intuition and emotional balance in people born under these signs.

Moonstone is a mineral that stands out not only for its attractive appearance but also for its unique optical properties, making it a popular choice in both jewelry and holistic practices.