gemstone danburite
Contents:
Danburite is a calcium boron silicate mineral with the chemical formula CaB2(SiO4)2.
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Danburite stone
It is named after Danbury, Connecticut, USA, where it was first discovered in 1839 by Charles Upham Shepard.
The stone can be of different colors from colorless to very light pink and from light yellow to brown. But usually only the colorless danburite is always cut as a gemstone.
It has a Mohs hardness of 7 to 7.5 as well as a specific gravity of 3.0. The mineral also has an orthorhombic crystalline form. It is usually colorless, like quartz, but can also be pale yellow or yellowish brown. Usually found in contact-metamorphic rocks.
Mineral classification Dana is classified as sorosilicate, while it is listed as tectosilicate in the Strunz classification scheme. Both terms are correct.
Its crystalline symmetry and shape are similar to topaz; however, topaz is a non-silicate containing calcium fluoride. Transparency, elasticity and high dispersion of danburite make it valuable as a faceted stone for jewelry.
Danburite Crystal Data
rhombic. Prismatic, diamond-shaped crystals.
physical properties
Cleavage: Blurred on f001g.
Fracture: uneven to subconchoidal.
Optical properties
Transparent to translucent.
Colour: Colorless, also white, wine yellow, yellowish brown, greenish; colorless in thin section.
Stripe: white.
Shine: From interesting to bold.
Entry
In granitic and metamorphosed carbonate rocks associated with hydrothermal activity, in pairs.
There are currently no examples of processing or enhancement of this stone. There are also no known synthetic materials or imitations on the market.
Pink danburite
The color usually ranges from colorless to light yellow, light pink, or light brown. With a weak cut and a hardness of 7, it ranks among popular gemstones such as quartz and topaz. While its modest dispersion means that cut danburites have no fire, properly cut gemstones are very bright. The most famous color is pink
Sources of
The stone occurs in altered carbonate rocks and in granites associated with hydrothermal activity. It also occurs in evaporites. The Danbury, Connecticut fields have long been closed and inaccessible due to the large community that has grown over the years.
Today we can find sources in Japan as well as Madagascar, Mexico and Burma. Mexico is today the most important source of quality gemstones.
The value of danburite and medicinal properties
Highly spiritual and sought after for its metaphysical properties, the stone is a powerful heart chakra stone that eases emotional pain and increases acceptance of self and others. The crystal will help you "let your light shine". The pure love energy of the crystal brings you peace and tranquility.
Danburite from Mexico
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