"Color-changing diaspore gemstone."
“Diaspore: A gem of transformation with stunning color-changing beauty.”

Diaspore: Gemstones Information

Some examples of diaspore, AlO (OH), have been found to show a color change from greenish in daylight to pinkish brown under tungsten light, though much paler than the similar effect seen in alexandrite. Stronger colors are visible when crystals are cut into thin sections. Diaspore forms platy crystals in the orthorhombic system with a perfect cleavage in one direction and a distinct cleavage in another. This makes fashioning quite difficult as the hardness is only 6.5–7. The SG is 3.2–3.5 and the RI 1.682–1.706, 1.705–1.725 and 1.730–1.752 for the alpha, beta and gamma rays.

The birefringence is 0.048, biaxial positive. Absorption bands noted in some specimens were at 471, 463 and 454 nm in the blue. Diaspore may be formed by the hydrothermal alteration of aluminous minerals and may be a hydrothermal mineral in some alkalic pegmatites. Large gem-quality crystals have been found from the area of Mamaris, Yagatan, Mugla Province, Turkey, and this seems to be the source of all faceted stones to date.

Title: Diaspore: Unveiling the Sublime Gem of Transformation

Diaspore, with its mesmerizing color-changing properties and unique brilliance, stands as a gemstone revered for its rarity and captivating allure. Named after the Greek word “diaspora,” meaning to scatter, diaspore has captured the fascination of gem enthusiasts and collectors worldwide. Delving into the realm of diaspore unveils a story of geological wonder, aesthetic beauty, and transformative energy.

Formation and Characteristics:

Diaspore is an aluminum oxide hydroxide mineral that typically forms in bauxite deposits under low-temperature hydrothermal conditions. It belongs to the orthorhombic crystal system and is characterized by its vitreous to adamantine luster and distinct color-changing phenomenon. Diaspore crystals often occur as transparent to translucent gem-quality specimens, with colors ranging from greenish-yellow in daylight to pinkish-purple under incandescent light.

Color-Change Phenomenon:

One of the most remarkable features of diaspore is its unique color-changing property, known as the “alexandrite effect.” This phenomenon occurs due to the presence of trace amounts of chromium within the crystal structure, which causes the gemstone to exhibit different colors under varying lighting conditions. In daylight or fluorescent light, diaspore typically appears greenish-yellow or olive-green, while under incandescent light or candlelight, it transforms to a pinkish-purple hue.

Physical and Optical Properties:

Diaspore possesses several physical and optical properties that contribute to its exceptional beauty and allure. It has a Mohs hardness of 6.5 to 7, making it relatively durable and suitable for use in jewelry. The gemstone’s refractive index is relatively high, resulting in impressive brilliance and sparkle when faceted or polished. Diaspore crystals may also exhibit pleochroism, displaying different colors when viewed from different angles.

Metaphysical Properties and Spiritual Significance:

In the realm of metaphysics and alternative healing practices, diaspore is believed to possess a range of therapeutic properties. It is associated with promoting positive transformation, personal growth, and emotional balance. Diaspore is often used in meditation and spiritual rituals to facilitate self-discovery, inner healing, and spiritual awakening. The gemstone’s transformative energies are thought to aid in releasing negative patterns, embracing change, and finding inner peace.

Chakra Alignment and Energy Balancing:

Diaspore is commonly associated with the heart chakra, which governs love, compassion, and emotional well-being. By stimulating the heart chakra, diaspore is believed to enhance feelings of love, forgiveness, and empathy, fostering harmonious relationships and inner balance. The gemstone’s soothing energies can also help clear blockages in the energy field and promote the free flow of vital life force energy throughout the body.

Healing Properties and Benefits:

Diaspore is thought to have a range of physical healing properties, particularly in relation to the heart, lungs, and circulatory system. It is believed to alleviate stress, anxiety, and tension, promoting relaxation and restful sleep. Diaspore is also said to support heart health, balance blood pressure, and improve circulation. Additionally, the gemstone is thought to aid in detoxification and purification of the body, promoting overall vitality and well-being.

Collectibility and Rarity:

Due to its scarcity and remarkable color-changing properties, diaspore is highly prized among gemstone collectors and enthusiasts. Fine-quality specimens with intense color change and exceptional clarity command premium prices in the market. However, diaspore remains relatively rare compared to other gemstones, making it a coveted addition to any collection.

Care and Maintenance:

Given its relatively high hardness, diaspore requires minimal care to preserve its beauty and integrity. Avoid exposure to harsh chemicals, extreme temperatures, and prolonged sunlight, as these may cause damage or discoloration to the gemstone. Clean diaspore jewelry with a soft brush or cloth and store it separately from harder gemstones to prevent scratching.


Diaspore captivates with its mesmerizing color-changing properties, exceptional brilliance, and metaphysical significance. From its formation deep within the earth to its transformative potential in spiritual and healing practices, diaspore remains a gemstone of profound beauty and allure. Whether admired for its alexandrite-like color change, cherished for its metaphysical properties, or sought after for its transformative energies, diaspore continues to inspire and uplift those who encounter its luminous presence.

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