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1990年,在雲南省古陸深變質巖系的花崗偉晶巖脈中,有關專家發現了祖母綠礦床。隨後陸續開採出部份原料并加工成祖母綠刻面寶石進入市場,受到客戶的歡迎。這一珍貴資源的發現,具有很高的經濟價值和重要的科学研究意義。云南祖母綠的特征雲南祖母綠一般為中等翠綠色(即嫩草綠色),少部份為淺綠色,個別晶體呈中等黃綠色。顏色鮮艷美麗,較少偏藍。少量为全透明,大部份則為半透明。玻璃光澤,貝殼狀斷口。晶體呈六方柱狀,直徑3～13mm(一般為5～10mm),粗者可達15mm以上;長度5～25mm(一般在10mm±),最長達45mm以上,單晶最重可達22克以上。垂直c軸的解理面有時可見,且常沿此解理面折斷,僅有少量可保持頂端完整的(0001)晶面。柱面上平行c軸的縱紋清晰,垂直和近於垂直c軸的綿紋很
In 1990, in the granitic pegmatite vein of the ancient Lu deep metamorphic series in Yunnan Province, some experts discovered the emerald deposit. Subsequent exploitation of some raw materials and processed into emerald faceted gem into the market, by the customer’s welcome. The discovery of this precious resource has high economic value and important scientific research significance. Characteristics of Yunnan Emerald Yunnan emerald is generally medium emerald green (ie tender grass green), a small part of the light green, individual crystals were medium yellow-green. Bright and beautiful color, less blue. A small amount of all transparent, most are translucent. Glassy, shell-shaped fracture. Crystal hexagonal columnar diameter of 3 ~ 13mm (usually 5 ~ 10mm), up to 15mm thick; length of 5 ~ 25mm (usually 10mm ±), up to 45mm or more, the largest single crystal up to 22 grams or more . The cleavage plane of the vertical c-axis is sometimes visible, and is often broken along this cleavage plane, with only a small amount of the (0001) crystal plane remaining intact. Parallel to the c-axis of the cylinder, the longitudinal lines are clear, and the vertical and vertical c-axis patterns are very tight