Chalk: A Versatile Mineral With Diverse Color Variations (White, Off-White, Gray, Pink, Black)
Chalk, a soft, white limestone, is commonly available in white or off-white shades. However, some varieties may exhibit gray, pink, or even black coloration due to the presence of impurities such as clay, iron oxides, or organic matter. Entities Crucial to Understanding the Topic Delving into the intricacies of any topic demands a firm grasp …
