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中國貴州省所出產的藍色石英岩,商業上又稱為貴翠

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New type of simulant for Taiwan gem silica: Guizhou Jade (Greenish-blue Quartzite)

寶石仿品技術千奇百怪
想買台灣藍寶(台灣產藍玉髓)
不是台灣沒關係~ 不夠藍沒關係~ 根本不是玉髓☝ 就有關係囉!
台灣特產的藍玉髓,又稱為「台灣藍寶」,是一種綠藍色玉髓,因包裹大量矽孔雀石內含物而呈現天空藍至海水藍色,深受台灣人喜愛。由於台灣藍寶價格不菲,市場上也有大量進口藍玉髓以之為名銷售,但業界普遍接受這個現況。近年業界出現一種壓根不是藍玉髓的仿品,是中國貴州省所出產的藍色石英岩,商業上又稱為貴翠,其顏色也屬天然的銅離子致色,與藍玉髓相似。藍色石英岩-貴翠與藍玉髓的唯一差異僅在於晶體顆粒的粗細,前者顆粒粗、多孔隙,屬微晶石英;後者則是晶粒細小且相對緻密,主要為隱晶石英。因為貴翠結構疏鬆多孔,灌膠後能呈現出類似藍玉髓的外觀質感,一般也常見於仿冒天河石。下次在買藍寶的時候要記得張大眼,不然可會賠了夫人又折兵喔!



Blue chalcedony from Taiwan is famous in the market and commercially known as ”Taiwan Blue Gemstone”. The color is usually charming greenish-blue(Sky blue to marine blue) caused by chrysocolla inclusions. Due to its high price, imported blue chalcedony is always sold as blue chalcedony from Taiwan origin. Recently, a new type of simulant appears in the market which is greenish blue quartzite from Guizhou, China and known as “Guizhou Jade” in the trade. The difference between quartzite and chalcedony is grain size and porosity. The former is coarse sized and porous microcrystalline quartz, the later is fine sized and compact cryptocrystalline quartz. For the porous structure,“Guizhou Jade” is usually impregnated with EPOXY resin; enhanced “Guizhou Jade” looks very similar to blue chalcedony or amazonite. 

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結構疏鬆多孔

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顆粒粗、多孔隙,屬微晶石英。此圖為灌膠時殘留於接近表皮的氣泡

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