Nowadays, the development and utilization of the renewable energy is more and more favored by countries all over the world for the purpose of solving the contradiction between the energy demand and the environmental protection. The application of renewable energy (including hydraulic energy, ocean energy, wind energy, solar energy, biomass energy and hydrogen energy) in our country develops rapidly and promotes the development of related industries at present. The optimization of energy structure will be realized, and the application prospect of the renewable energy industry will be broadened under the guidance of carbon peak and requirements of carbon neutral in the future.

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This paper investigates the deposit geology, ore body characteristics, and ore characteristics of the ornamental granite mine located in Xinyi, Guangdong Province. According to the research, ornamental granite is mined in the Silurian period at an elevation of +943m~+423m. The ore is composed primarily of gneissic granite, and the principal constituent minerals are potassium feldspar, plagioclase, quartz, and biotite; potassium feldspar accounts for 25%~30%, plagioclase for 30%~35%, quartz for 30%~35%, and biotite for 7%~9%; the principal chemical components are SiO2 and Al2O3, accounting for 68.15% and 13.29%, respectively. The density is 2.61~2.69g/cm3, the water absorption rate is 0.09~0.19%, the abrasion resistance is 66~119cm-3, the bending resistance is 13.5~18.3MPa, the gloss is 87.0%~87.7%, the dry compressive strength is 82.5~141.0MPa, the saturated compressive strength is 71.0118.0MPa, the internal irradiation index is IRa=0.1, and the external irradiation index Ir=0.3～0.4，which can meet the decoration and construction purposes.