“达碧兹”结构是指由“臂”、“核”和主体部分组成的特殊结构。本文采用多种现代测试手段对“达碧兹”海蓝宝石进行测试，分析了其光谱学特征，并对其结构成分进行了研究。结果表明，其红外光谱符合贫碱结构水型绿柱石特征。拉曼光谱测试表明其“核”、“臂”和主体部分成分一致，均为绿柱石。紫外-可见光吸收光谱测试表明，Fe²⁺同时存在于八面体和隧道中，八面体中的Fe²⁺是导致样品呈现蓝色的主要原因。成分分析测试结果显示，“达碧兹”结构中六边形“核”的外围及“臂”中的铁含量最高，蓝色调也最深。“臂”的位置与六方柱晶面位置一致，属于“类达碧兹型”宝石。显微特征表明“臂”是由大量定向排列的絮状包裹体构成的，结合晶体层状生长理论可知该包体是由晶体层状向外生长过程中所形成的缺陷和平行连生共同导致的。

Trapiche structure refers to a special structure comprising arms, core, and main body. In this study, the spectroscopic characteristics and element, structure are investigated using various modern testing methods. The results showed that the infrared spectrum of beryl agrees with the characteristics of water-type beryl of alkali-deficient structure. The Raman spectra show that the components of the core and arms are consistent with that of the main body, which belongs to beryl. The UV-Vis absorption spectra showed that Fe²⁺ exists in octahedron and tunnel, confirming the reason for the blue color of the sample. The composition analysis shows that high content of Fe²⁺ exists in the periphery and arms of hexagonal, with deeper blue color. The Trapiche arms' position of the aquamarine agrees with the hexagonal columnar plane, which belongs to the Trapiche-like gem. The microscopic characteristics show that the "arm" comprises a large number of directionally arranged flocculent inclusions, which are jointly caused by defects formed in the process of crystal-layered outward growth and parallel concatenation according to the theory of crystal-layered growth.