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Additional recommended knowledge
Varieties of beryl have been considered gemstones since prehistoric times. Recognized for its beauty, in the Bible, in Ezekiel 1:16, the wheels of God's throne are described as having the appearance of "gleaming beryl". Green beryl is called emerald, red beryl is bixbite or red emerald or scarlet emerald, blue beryl is aquamarine, pink beryl is morganite, colorless beryl is goshenite, and a clear bright yellow beryl is called golden beryl. Other shades such as yellow-green for heliodor and honey yellow are common. Red beryl is extremely rare and is not used in jewelry as the crystals it forms are very small. It is mined primarily in Utah. Blue beryl (aquamarine) when exposed to sunlight will not fade in color. Maxixe type beryl is a deep blue stone that fades to white when exposed to sunlight or is subjected to heat treatment, though the color returns with irradiation.
Beryl is found most commonly in granitic pegmatites, but also occurs in mica schists in the Ural Mountains and is often associated with tin and tungsten ore bodies. Beryl is found in certain European countries such as Austria, Germany, and Ireland. It also occurs in Madagascar (especially morganite).
The most famous source of emeralds in the world is at Muzo and Chivor, Boyacá, Colombia, where they make a unique appearance in limestone. Emeralds are also found in the Transvaal, South Africa, Minas Gerais, Brazil, and near Mursinka in Urals. In the United States emeralds are found in North Carolina. New England's pegmatites have produced some of the largest beryls found, including one massive crystal with dimensions 5.5 m by 1.2 m (18 ft by 4 ft) with a mass of around 18 metric tons. It is New Hampshire's State Mineral. Other beryl locations include South Dakota, Colorado, Utah, Idaho, and California.
As of 1999, the largest known crystal of any mineral in the world is a crystal of beryl from Madagascar, 18 metres long and 3.5 metres in diameter.
Massive beryl is a primary ore of the metal beryllium.
The druids used beryl for scrying, while the Scottish called them “stones of power”. The earliest crystal balls were made from beryl, later being replaced by rock crystal.
References and external links
Look up beryl in Wiktionary, the free dictionary.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Beryl". A list of authors is available in Wikipedia.