The **Journal of Mineralogy**, published in August, announced that a newly discovered boron nitride (BN) mineral, found by researchers from China and abroad, has been officially recognized by the International Mineralogical Society. The mineral was named *Qingsongite* in honor of Fang Qingsong, a renowned researcher at the Chinese Academy of Geological Sciences (1939–2010). This discovery marks an important milestone in mineralogy, especially in relation to the Robussa chromite ore deposit.
In addition, the *Minerals Journal* also reported on the significant contribution of the first diamond identified in the Lobusha chromite ore, further highlighting the importance of such findings in understanding deep Earth processes.
Recent studies led by Yang Jingyu, a researcher at the State Key Laboratory of Continental Tectonics and Dynamics, have involved international collaborations to identify diamonds within 10 ophiolites across five different orogenic belts globally. These studies revealed unique mineral inclusions, including coesite and antimony ores, as well as rare nanoscale ultra-high-pressure minerals such as titanium nitride (TiN) and boron nitride (BN).
Composition analysis of *Qingsongite* showed a high concentration of boron (48.54%) and nitrogen (51.46%), with a chemical formula of BN. It exhibits a cubic crystal structure, and its size is extremely small—up to 1 micrometer at maximum, with most particles measuring in the nanometer range. The mineral is typically enclosed within micro-scale ultra-high-pressure coesite and kyanite.
Experimental data indicate that *Qingsongite* formed under extreme conditions: a temperature of around 1300°C, pressure between 10–15 GPa, and a formation depth exceeding 300 kilometers. These findings suggest that deep mantle minerals, including diamonds and other ultra-high-pressure minerals, are brought up from great depths through tectonic processes, particularly beneath oceanic spreading ridges.
This discovery of *Qingsongite* and other ultra-high-pressure minerals in various orogenic belts worldwide provides new insights into the dynamics of mantle material transport and the formation of chromite deposits. It challenges existing theories about ophiolite genesis and the composition of the oceanic crust, offering a fresh perspective for global geoscientists.
Aluminum Handles,Door Hardware Handle,Door Hardware Handle,Wardrobe Modern Cabinet Handle
ONLEE HARDWARE CO.,LTD , https://www.onleehardware.com