White calcite lump is a natural mineral that has a white color and is composed of calcium carbonate. It has various uses in different industries such as construction, agriculture, and cosmetics. The crystal structure of calcite makes it a popular choice for optical purposes, including making lenses and prisms. It is also frequently used as a filler material in the production of paper, paints, and plastics. Additionally, white calcite lump can be used in agricultural applications as a soil conditioner and pH adjuster. With its versatility and abundance in nature, white calcite lump is a popular mineral choice for various industries.