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以往只在大别山东段安徽省境内新店一带大理岩中榴辉岩内发现过微粒金刚石. 近两年来, 相继在苏鲁地区的毛北、大别山东段新店、老油坊以及北部百丈崖榴辉岩的岩石薄片中和黄尾河榴辉岩的重砂样中发现了微粒金刚石. 薄片中金刚石以包体形式产在石榴子石中, 或产出在石榴子石的颗粒之间. 苏鲁地区的3颗微粒金刚石晶体直径分别为30, 60和120 mm; 晶形似为八面体以及和立方八面体. 安徽省潜山县新店一颗微粒金刚石的直径180 mm, 环带结构, 中心为八面体, 环带似为立方八面体的六边形. 新店附近的老油坊榴辉岩中的退变微粒金刚石, 为晶形不明显的集合体, 大部分退变为石墨. 超镁铁岩带内百丈崖榴辉岩中微粒金刚石由2 ~ 3个单颗粒组成直径70 mm×90 mm 的集合体, 黄尾河榴辉岩重砂样中发现有直径50 mm不完整四面体的微粒金刚石. 所有上述各地的微粒金刚石都由Raman光谱证实. 微粒金刚石和其他证据都证明超镁铁岩带与其南部已经证实的超高压变质带一样, 也经历过超高压变质作用, 从而为所建立的大别山几何结构提供了更为确切的证据.
In the past only in the Dabieshan section of Xindian area in Anhui Province within the marble eclogite found in the past two years, one after another in the Sulu area Maobei, Dabieshan Xindian, Laoyoufang and Baizu cliff eclogite Particle diamond was found in the heavy sand samples of the rock flakes and the Huangwei eclogite. The diamonds in the flakes were produced as inclusions in the garnet or between the garnet grains. The 3 Particle diamond crystals are 30, 60 and 120 mm in diameter, octahedron and cubic octahedron, respectively. The diameter of a diamond particle in Xindian, Qianshan County, Anhui Province, is 180 mm with a ring structure centered on the octahedron and ring With a cubic octahedron hexagon .New shop near the old Youfang eclogite degenerated particulate diamond, crystal form is not obvious collection, most of the degenerated into graphite. Ultramafic Belt Baizhang cliff Particulate diamond in the Hui Yan is composed of 2 to 3 single grains with an aggregate diameter of 70 mm × 90 mm. Particulate diamond with 50 mm diameter incomplete tetrahedron is found in the heavy sand sample of the Huangweihe eclogite. All the above particles gold Rocks were confirmed by Raman spectroscopy, and microparticle diamond and other evidence both demonstrated that the ultramafic belt, like the proven UHP metamorphic belt in the south, has undergone UHP metamorphism to provide a more Exact evidence.