Valguskanalite

Valguskanalite is a rare mineral species, first discovered in 1994 in the Valgus mine, Estonia. It is a complex borate mineral, with the chemical formula Na2Ca2B5O9(OH)5. Valguskanalite crystallizes in the monoclinic crystal system, forming prismatic crystals that can reach up to 1 cm in length. The mineral is typically colorless or white, but can also exhibit shades of yellow or brown due to impurities.

Valguskanalite is found in the oxidized zone of the Valgus mine, where it occurs as a secondary mineral formed through the alteration of primary borate minerals. It is often associated with other borate minerals such as ulexite and borax. The mineral's name is derived from the type locality, the Valgus mine, and the Greek word "kanalite," which refers to its structural relationship with the mineral kanalite.

Valguskanalite is of limited interest to collectors due to its rarity and small crystal size. However, it is a valuable mineral for scientific research, as it provides insights into the complex chemistry and mineralogy of borate minerals. The mineral's discovery and characterization have contributed to our understanding of the geological processes that occur in the oxidized zone of borate deposits.