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Danburite
Main Deposits
Mexico (San Luis Potosí, main source of gems), Japan, Russia, Myanmar (Burma), and the United States.
Description and Characteristics
Danburite is a calcium boron silicate that forms primarily in contact metamorphic rocks and hydrothermal veins. Although its crystal structure is orthorhombic, its wedge-terminated prismatic crystals bear a striking visual resemblance to topaz, though they are distinguished by their cleavage and chemical composition. It was originally discovered in 1839 in Danbury, Connecticut (USA), the place from which it takes its name. It is a stone of great transparency and brilliance that, in its purest specimens, is colorless, although it can also show very subtle yellowish or pinkish tones. It is highly valued in designer jewelry and by collectors due to its excellent clarity and light dispersion.
| Chemical Formula | $$CaB₂(SiO₄)₂$$ |
|---|---|
| Luster | Fatty vitreous |
| Streak | White |
| Fracture | Subconchoidal to irregular |
| Cleavage | Very poor or none |
| Hardness | 7-7,5 Mohs |
| Crystal System | Orthorhombic |
Did you know...?
Despite its beauty and having considerable hardness for jewelry, danburite is not well known by the general public, remaining a "secret" among gemologists. Crystals from Danbury (the original deposit) are museum pieces today, as the mine was buried under the city's urban growth. A curious feature is that some danburite specimens can exhibit strong thermoluminescence, emitting a bluish light when gently heated.
New-Age Properties
Danburite is a very high-vibration stone that acts directly on the crown chakra, opening it and connecting it with the heart chakra. It is known as a stone of "spiritual lucidity" that facilitates communication with angelic realms and higher guidance. It is a powerful tool for deep meditation, as it calms the mind and allows spiritual light to penetrate the physical body. It helps release the past and heal karmic wounds, bringing a sense of profound peace and serenity. It is ideal for major life changes, as it smooths the path and helps one act from selfless love and understanding.