Tuilindo | 等级 天使
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注册 04-07-31 17:42
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发表 2004-12-20 18:33:57 人气:41 
这段文字介绍的是老大给的图里的那种，资料比较古老，只提到哥伦比亚的穆佐。
Trapiche emeralds are in a class by themselves. Found only in the celebrated Muzo mining district of Colombia, these are perhaps the rarest of "pattern" gems, and certainly the most unusual amongst the big three (emerald, ruby, and sapphire). Their six spoke-like carbon "rays" emanating from a hexagonal center with the areas in between filled with lively emerald green makes this a gem you'll never forget once you see one.
The earliest reference to trapiche emeralds was in an 1879 French mineralogical bulletin. It was more than 36 years later before it appeared again, remarkable because such literary greats as George Kunz were writing much around the turn of the Century.
Trapiche is the Spanish word for a spoked wheel used to grind sugar cane which bears a striking resemblance to the pattern in these emeralds. It is pronounced trah-pee-chee with the accent on the second syllable.
There are two types of trapiche emeralds. The "A" type is under 2-carats and has bands of lighter emerald separating the sections. The more prized "B" type ranges from 2 to 50 carats and has distinct carbon bands.
Trapiche emeralds are valued based on a number of factors. The most important is the definition, completeness, and centering of the "rays." A close second factor is the color of the emerald which ideally is deep, saturated, and even. And third, and also q uite important, is the quality of the cut. You have to see our trapiche to appreciate the quality it has on all three counts: the rays are clean and distinct, the color is intense and even, and the cut is superb including some sculpturing underneath to add appeal and eliminate unnecessary weight.
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