#actinolit

• Actinite — A structural metamorphic rock or a variety of crystalline schist characterized by the predominant presence and radiating or fibrous arrangement of actinolite crystals (a mineral from the amphibole group). This technical term describes compact geological formations, created under medium temperature and pressure conditions, recognized for their greenish hues and specific acicular texture.
• Actinolite — A mineral belonging to the monoclinic amphibole group, with the chemical formula Ca2(Mg,Fe)5Si8O22(OH)2, characterized by a dark green or leek-green color. Structurally, it develops as acicular, fibrous, or radiating aggregates, being a common constituent of metamorphic rocks (such as greenschists). Its compact fibrous variety constitutes one of the mineral forms known as asbestos, while the dense microcrystalline variety forms nephrite (a type of jade).
• Actinote — A silicate mineral belonging to the monoclinic amphibole group, synonymous with actinolite, with the chemical formula Ca2(Mg,Fe)5Si8O22(OH)2. It occurs structurally as long prismatic crystals, often acicular, fibrous, or assembled in dark green, olive-green, or grayish radiating aggregates, being an essential component of many crystalline schists resulting from the regional metamorphism of basic magmatic rocks.