Gemmological and Mineralogical Characteristics of “Gold Tian Huang from Indonesia”
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摘要: 针对珠宝市场上新近出现的一种田黄仿制品——“印尼金田黄”(市场俗称)进行了 XRD, ICP-MS及FTIR等大型仪器的系统分析测试, 并对其矿物组成、化学成分等方面进行了系统的分析, 并与寿山田黄进行了对比。研究结果发现, “印尼金田黄”主要为方解石矿物组成, 与寿山田黄的矿物组成完全不同; 其化学全分析结果显示, 除Ca外, Mn, Fe等变价金属离子元素的质量分数较高, 可能是导致“印尼金田黄”呈现金黄色的主要致色原因。无论其矿物组成、化学成分还是常规宝石学特征, 均与传统的、以地开石为主的寿山田黄完全不同。Abstract: By using XRD, ICP-MS and FTIR, a systematic research is carried out on the mineral components, chemical compositions and gemmological characteristics of“Gold Tian Huang from Indonesia”which appears in the current jewelry market as a new imitation of Tian Huang.The results show that the“Gold Tian Huang from Indonesia”is mainly composed of calcite.The elements analysis indicates that besides Ca, high amount of transitional-metal ions such as Mn and Fe, may be the main reason for the golden yellow colour of the“Gold Tian Huang from Indonesia”.Compared with Tian Huang from Shoushan which is mainly composed of dickite, “Gold Tian Huang from Indonesia”is completely different in the mineral components, chemical composition and conventional gemmological characteristics.
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Keywords:
- “Gold Tian Huang from Indonesia” /
- calcite /
- Tian Huang /
- dickite /
- FTIR
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