Actinolite Stone – History, Colors, Specifications & Characteristics
What is Actinolite Crystal? Actinolite is a member of the amphibole mineral group, which is characterized by its long, slender crystals. It is primarily composed of calcium, magnesium, iron, and silicon, and has a chemical formula of Ca2(Mg,Fe)5Si8O22(OH)2. Actinolite is typically found in shades of green, but can also be found in black, brown, or…