Aragonite
Other names: Calcium carbonate
Harm score: 1 (Natural substances)
Aragonite is a special form of the mineral calcite (calcium carbonate) and is one of its anhydrites. Its value lies primarily in its crystal structure, which allows it to retain heat better than other rocks. This unique crystal material is named after the place of its discovery, the Spanish province of Aragon. The colour of aragonite ranges from colourless to white, grey, yellow, green or red. This colouring is due to the admixture of other substances such as iron, manganese or lead.
Aragonite is widely used in industry. As a component of marble, it is important for the production of flooring, tiles and sculptures. It is also often used in optics for the production of microscopic slides. Due to its durability, it is also used in dental replacement material. It is very valuable for aquarium keeping, where it is used to regulate the pH and hardness of water, providing ideal conditions for the growth and development of aquatic organisms, especially corals. Aragonite is also used in agriculture, where it serves as a source of calcium to improve soil quality and increase soil fertility. In addition, it is increasingly used in the food industry as a food supplement for livestock.