Morphology Evolution of Nano-Micron Pyrite: A Review
Morphology Evolution of Nano-Micron Pyrite: A Review
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DOI：
10.1166/jnn.2017.14430
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发表时间：
2017-09
影响因子：
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通讯作者：
Fei Huang;Wenyuan Gao;Shang Gao;L. Meng;Zhibin Zhang;Yingcan Yan;Yaqun Ren;Yongli Li;
中科院分区：
文献类型：
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作者：
Fei Huang;Wenyuan Gao;Shang Gao;L. Meng;Zhibin Zhang;Yingcan Yan;Yaqun Ren;Yongli Li;
黄铁矿是自然界中分布最广的硫化物之一，属于等轴体系，具有NaCl型衍生结构。纳微米级黄铁矿存在于古沉积岩、现代沉积物、现代海底热液喷口和各种矿床等多种地质体中。纳米微米级黄铁矿有一维晶须、二维片状、三维颗粒和球状等多种聚集体。同时，在实验的硫铁矿产品中也发现了类似的现象。纳米-微米级黄铁矿的各种形态是识别黄铁矿所处地质环境变化最直观的证据。黄铁矿的不同形貌所导致的物理化学性质的差异对矿物材料的开发利用具有重要价值。本文综述了自然界和实验室中有关纳米-微米黄铁矿形貌演化的研究成果。影响纳米-微米黄铁矿形貌及其演化的因素是多样的、复杂的。目前，控制等轴黄铁矿具有多维形态的决定因素以及各因素的作用程度仍是重要的研究对象，但尚不清楚。以典型的多形貌黄铁矿生长为例，通过现代观测技术、实验方法和晶体学计算，对纳米-微米矿物生长的热力学和动力学过程有了更好的理解。这将有助于建立纳米-微米尺度上等轴矿物多形态生长演化理论。这些研究成果对完善纳米-微米矿物结晶生长理论具有重要意义。
Pyrite is one of the most widely distributed sulfides in nature belonging to the isometric system with NaCl-type derivative structure. Nano-micron pyrites exist in many types of geological bodies, such as ancient sedimentary rocks, modern sediments, modern submarine hydrothermal vents and various mineral deposits. Nano-micron pyrites have one-dimensional (1-D) crystal whisker, twodimensional (2-D) plate and flake, three-dimensional (3-D) particle and spheroid, and other different aggregates. Meanwhile, similar phenomena have been found in the experimental pyrite products. The various morphologies of nano-micron pyrite serve as the most direct-viewing evidence to identify the changes of the geological environment where the pyrites are located. The difference in physical and chemical properties of pyrite caused by different morphologies is valuable for the development and utilization of mineral materials. This work provides an overview of research results relating to the morphology evolution of nano-micron pyrites both in nature and experiments. The factors that affect the morphologies and their evolution of nano-micron pyrite are diversified and complex. At present, the decisive factor in controlling isometric pyrite having multiple dimensional morphologies and the extent of each factor are significant research objects that are still unclear. With the typical multi-morphology pyrite growth examples, a good understanding of the thermodynamics and kinetics process of nano-micron mineral growth will be obtained with modern observation technologies, experimental methods, and crystallographic calculations. It will help to establish theories on the multi-morphology growth and evolution of isometric minerals on the nano-micron scale. These achievements will be significant for improving new theories on the crystallization and growth of nano-micron minerals.