Introduction to tin oreTin ore has the characteristics of ductility, chemical stability, corrosion resistance, etc., and···

💎 Tourmaline｜From 5 yuan to 50,000 yuan, a "rainbow millionaire", wearing the right color will turn you int···

💚 Peridot | A "summer forest" gem that makes your skin whiter and brings in wealth, the emerald ceiling of s···

What is cobblestone?Cobblestone is a kind of natural stone, the main chemical component is silicon dioxide, containing a···

Introduction to graniteGranite is a high-hardness, wear-resistant ore, mainly composed of quartz, feldspar and mica. It ···