合成亞歷山大石 AAA 圓形刻面裸石 4x4mm 1顆
其他未鑽孔（無孔）的寶石
1顆：約0.32克拉尺寸：約3.8-4x3.8-4x2.2-2.8毫米
未鑽孔（裸石）
顏色：藍綠色
這些是圓形刻面合成亞歷山大石。它們採用「柴可拉斯基法（晶體拉伸法）」生產，該方法將半導體技術應用於生長超純單晶。它們最顯著的特徵是戲劇性的顏色變化。在自然光下，它們呈現深藍綠色，而在白熾燈下，它們會鮮明地變為紅紫色（第三張圖片是在白熾燈下拍攝，第四張圖片則是在黑光燈下拍攝（峰值波長395納米））。作為珠寶用的裸石，它們的透明度和顏色都非常出色。由於它們未鑽孔，因此非常適合鑲嵌和其他類型的加工。它們已被鑑定為「合成亞歷山大石」。
[*圖片中的網格為1cm x 1cm。]
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