Calacatta quartz stone is a man-made stone made of crushed quartz combined with resin and pigment. Quartz accounts for more than 90% of the material, making it extremely hard and non-porous.

While clear quartz does have some rare healing properties, it is not considered a rare gemstone overall.

Pure quartz, also known as rock crystal or clear quartz, is usually colorless, transparent or translucent. It is often used in various crafts and decorations, such as Lothair crystal. In addition to colorless, transparent or translucent pure quartz, there are many colored varieties.

Artificial quartz stone is a manufactured product that is different from natural quartz minerals. It is made from quartz particles bonded together with resins, pigments and other ingredients.

For small cracks, clear resin is the best repair material. If clear resin doesn't completely repair the crack, you can try using a stain to match the color of the quartz stone. If the cracks are large and cannot be repaired with resin or stain, consider placing decorative items, utensils, cutting boards, etc. on the quartz countertop to cover the damaged area.