The origin of the green tourmalines, a bottle-green tourmaline, for example, may also be referred to as a 'Brazilian tourmaline'. At this point it is useful to know that this does not necessarily mean that the stone comes from Brazil. Earlier, it was more or less the rule that bottle-green tourmalines came almost exclusively from Brazil, whilst stones which were green or blue-green generally originated from Africa. Today, the bottle-green tourmalines are often referred to as 'Brazilian tourmalines' and those which tend more to green or blue-green as 'African tourmalines'. The green tourmalines look like emeralds. Tourmalines are borosilicate with a very complex structure. The coolers are caused, among other things, by tiny amounts of foreign matter and trace elements. Because of the complex structure of this gemstone, it exists in an almost endless number of varieties and coolers depending on where it developed. There is something fascinating about this individuality, for practically each deposit has produced its own kind of tourmaline.
In the form of mostly small dark crystals, tourmalines can be found practically all over the world. The places which supply crystals so large and beautiful that precious gemstones can be cut from them are, however, much, much rarer. The major green tourmaline deposits are in Brazil, Namibia, Nigeria, Mozambique, Pakistan and Afghanistan. But green tourmalines of good color and transparency are a rare thing in any gemstone mine. Green tourmalines can be cut in all kinds of different ways. However, the cutting of a tourmaline does require special care, since the color intensity of most green tourmalines is variously developed depending on the direction of growth.
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pearl necklaces jewelry macy's |By Luo Fu Sheng on June 04, 2011
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People like its various sort of colors and their rare specimen which have a appearance to change their color and cats eye tourmaline, it is also a kind of precious gems and suit to all kinds of fine jewelry setting and it becomes well accepted by those jewelry settings wholesale and even well known among the jewelry collectors.
The green tourmaline, the gemstone comes in green, red, blue, yellow or even the colorless and black specimens. The tourmaline is a unique mystery of color, and it often has two or even more colors are found in a single tourmaline crystal. However, green is regarded as a classical class of color, a broad spectrum occurs among the green tourmaline, some of them are very light in colors; some of them are dark that the green tourmaline can only be recognized when the tourmaline gem is held against the light. Despite of the dark green color, it also has the yellowish-green, olive green and brownish green, but the most wonderful tourmalines are blue green and dark bottle-green in colors. These are the best colors and usually rare and much sought-after. The green tourmaline is nowadays very popular as a kind of precious stones among women and men, but not easy to find the perfect one that most likely can be found through some of the wholesale gemstone jewelry store.
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