Mesolite is a mineral that belongs to the zeolite group. It is a hydrous calcium, sodium, and aluminum silicate with a complex crystal structure. The name "mesolite" is derived from the Greek words "mesos" meaning "middle" and "lithos" meaning "stone," referring to its intermediate hardness between other zeolites.
Mesolite typically occurs as thin, fibrous crystals that form in cavities and voids of volcanic rocks. It is commonly found associated with other zeolites, such as natrolite and stilbite. The mineral often appears as radiating or divergent groups of elongated, prismatic crystals, which can range in color from colorless to white, peachy pink, or pale green.
Due to its fibrous structure, mesolite exhibits exceptional optical properties. When illuminated, it displays a pearly, silky luster and may exhibit a chatoyancy or cat's eye effect. Mesolite's fibrous nature also gives it a delicate and brittle quality, making it susceptible to crumbling or breaking under pressure.
Mesolite is a relatively rare mineral but can be found in various locations around the world. Notable deposits exist in India, Iceland, Scotland, Italy, Australia, and the United States. It is valued for its aesthetic appeal and is often sought after by mineral collectors and enthusiasts. In addition, mesolite has industrial applications as a molecular sieve in gas purification and water treatment processes.
Overall, mesolite is a fascinating mineral with its unique crystal structure, fibrous habit, and diverse applications, making it a subject of interest in both scientific and commercial domains.
