Kriostilisel

Kriostilisel is a mineral belonging to the pyroxene group, characterized by its orthorhombic crystal structure. It is a silicate mineral primarily composed of calcium, manganese, and iron, with the chemical formula (Ca,Mn,Fe)Si2O6. Kriostilisel is notable for its vitreous to greasy luster and typically appears in shades of green, brown, or gray.

This mineral commonly occurs as an accessory mineral within metamorphic rocks such as schists and gneisses, as well as in certain magmatic environments. It forms under medium to high-grade metamorphic conditions, often associated with garnet, amphibole, and other pyroxenes. Its formation is influenced by the availability of calcium and manganese during mineral crystallization processes.

Kriostilisel has been studied for its geological significance, particularly in understanding metamorphic facies and the conditions that lead to its formation. It is also of interest in mineralogy and petrology for its crystalline properties and its role as an indicator mineral.

Although not widely used commercially, kriostilisel specimens are valued by collectors for their distinctive appearance and crystal forms. Training and experience are often required for proper identification due to its similarity to other pyroxenes and silicate minerals.

In summary, kriostilisel is a distinct calcium-manganese-iron pyroxene mineral that provides important insights into metamorphic processes and mineralogical compositions within specific geological environments.