How to judge the quality of brown corundum
The color of brown corundum is mainly brown and translucent. The color of brown corundum with a higher aluminum content is lighter. It is bright brown. It is a beautiful color with high transparency under sunlight. Brown corundum has a higher
hardness, higher abrasion resistance, and higher iron content. The smaller the size of the brown corundum, the lighter the color, and the larger the color, the heavier the color. In fact, the material is the same, but the particle size determines the color.