有一名客戶因為喜歡水沫玉如冰種、玻種翡翠般的質感，所以購買了一只水沫玉飄花手鐲。除了冰透的外觀以外，裡面有大量的灰黑色棉絮狀包體，俗稱 飄花水沫玉。市場上的水沫玉有兩種材質，一種為石英岩類，另一種是鈉長石，因為比例上鈉長石僅佔十分之一，消費者通常偏好鈉長石水沫玉。這位客戶購買時，指定要納長石，賣家也附有鑑定證書，但是因為有點懷疑所以再送驗本所，三位鑑定師以拉曼光譜檢驗後確認，該手鐲是石英岩類。因為鈉長石與石英岩在比重、折光率等諸多性質上極為雷同，需靠拉曼等高階儀器才可準確區分。實際上，寶石鑑定的結論可能因為檢驗的儀器、時間和專家看法不同而有所差異，所以消費者除了認證書，還要記得看鑑定所的儀器設備規格，以免買錯傷錢又傷心！想瞭解更多水沫玉的知識嗎，請詳讀林所長所著「實用寶石學」一書！不然也可以報名台灣聯合珠寶玉石鑑定中心的寶石課程呦！
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A bangle from our customer is identified by TULAB gemologist as quartzite with high transparency and grey cloud inclusions inside. The jeweler claim that the bangle is certified to be albite which is relatively rare than quartzite. It is difficult to discriminate albite with quartzite because their gemological properties are similar. Raman spectroscopy is the best way to identify them. TULAB of GEM RESEARCH is equipped of Raman, FTIR, UV-VIS and EDXRF; TULAB would be your best choice.
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