裂紋藍綠色琥珀半穿孔圓珠 12mm 2顆
琥珀
1顆:0.90克
尺寸:約11.3-11.6毫米
孔徑:約0.8毫米
顏色:藍色、黃色(經染色處理)
這些是半鑽孔的圓形波羅的海琥珀珠,來自波羅的海沿岸。它們具有高透明度和美麗的藍綠色至黃色漸變。內部的裂紋產生閃爍的反射,使其外觀更加璀璨。對於半鑽孔,可以使用0.8毫米或更小尺寸的T針(插入金屬零件)或九字針。儘管尺寸較大,但它們輕巧且易於處理。
[*圖片中的網格為1厘米 x 1厘米。]
這種琥珀經過加壓和熱處理。目前,琥珀加工技術已經進步,通常會對較薄的琥珀原石進行加熱和加壓處理,使其重塑成較厚的形狀,然後再進行加工。這種方法使得更容易製作出較大的尺寸,並減少原材料的損耗,從而能夠以更實惠的價格銷售。據我們所知,近年來大多數形狀一致的琥珀都採用了這種方法。寶石學會對於使用此技術加工的琥珀沒有統一的看法,因此根據鑑定師的個人知識和解釋,可能會出具「琥珀」鑑定報告,也可能拒絕出具報告,或者被判定為「仿製品」。
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紅色琥珀半鑽孔圓珠 12毫米 2顆
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