美国的宝石产量虽不象别国的宝石产量那样倍受关注,但自1985年以来有了突飞猛进的增长。有些州仅产一种宝石原料。例如:田纳西州只产淡水珍珠;阿肯色州只产石英(水晶);阿拉斯加州仅产玉石;佛罗里达州只产玛瑙化珊瑚。而其它州 Although the production of precious stones in the United States has not drawn the same attention as other countries’ precious stones, it has enjoyed rapid growth since 1985. Some states produce only one type of precious raw material. For example: Tennessee produces only freshwater pearls; Arkansas produces only quartz (crystal); Alaska produces only jade; and Florida produces only agate corals. Other states