在新疆苏吉泉花岗岩所含团块状石墨中发现一种细长针状物,经高分辨电镜能谱分析其化学成份为碳.电子衍射数据分析表明其结构为2H多型石墨.确认该细长针状物为准纳米针状石墨,其长度可达12 500 nm,宽度为150 nm,边缘平直,且晶面条纹平直度极高.认为这种准纳米针状石墨会具有优异的力学性质,可能是一类高强度的材料.
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