natural groupings 中文意思是什麼
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There are shades colors reminiscent of fine amber wine, the blush of a luscious peach, fiery oranges, and still more colors within these groupings. there is a blue topaz but its color is seldom natural
專家講，上等的紫紅色、粉紅色黃玉有價值， "雪利酒"色又叫"帝王黃玉" ，是其中珍品，然後是藍和一般的黃色。
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