瑪瑙是一種以隱晶質石英為主的具有明顯紋帶、花紋的礦物。數千年來，瑪瑙一直是我國的傳統玉石之一，乃雕琢美術工藝品的上等材料。冰糖瑪瑙是瑪瑙中一種，老年間稱作糖心瑪瑙，冰糖瑪瑙的主要特點就是半透明的外觀，顏色通常為黃色或淡黃色，有時也會出現紅色、綠色等其他顏色。紋理細膩，光潔度高，具有良好的透光性。
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"清雍正御制冰糖瑪瑙盞
div老冰糖瑪瑙的特征包括其獨特的顏色和紋理，以及可能因為長時間的使用或存放而產生的自然磨損或包漿，老冰糖瑪瑙存世量稀少，像這么大的冰糖瑪瑙，陳陽都是第一次見。
這件瑪瑙碗，直口、深腹、腹下斜收至底，圈足，質地致密，晶瑩光潔，典雅秀麗，別致脫俗。
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