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GIA 公布0.62ct钻中钻(Matryoshka)检测报告 - ROTASS
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GIA 公布0.62ct钻中钻(Matryoshka)检测报告

GIA 公布2019年俄罗斯发现的全球首颗钻中之——“Matryoshka钻石“的检查报告,这颗0.62ct钻石原石开采自俄罗斯萨哈共和国(Yakutia),晶体空腔里有另一颗完整的小钻石,引起宝石矿物行业的极大关注。

GIA 认为,这颗「钻中钻」由晶体溶蚀而形成——它的表面存在2个天然蚀坑,一直延伸至内部,成为2个小型通道,经过数十亿年,溶蚀逐渐加深,最终形成一个空腔和独立的0.03ct钻石晶体。「Matryoshka」是由 Nyurba 采矿和加工部门在分拣过程中发现,大钻呈正八面体轮廓,尺寸为4.8×4.9×2.8mm,空腔体积约为6mm³;晶体内部中可以看到一颗板状的小钻自由移动,尺寸为1.9×2.1×0.6mm,重量为0.03ct。经过分析检测,这颗0.03ct的小钻石与主体拥有几乎相同的微量元素,表明晶体在地幔中形成时原本为一颗实心钻石。

GIA 还对内含的0.03ct钻石的颜色形成进行了鉴定——这颗小钻有绿色调,表面有「圣诞树」形状的蚀刻纹,推测由带有放射性的液体侵入导致,钻石经过辐照而呈现绿色。

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