What is mgfe 7si8o22 oh 2?

MgFe7Si8O22(OH)2 is a mineral known as anthophyllite. It belongs to the amphibole group of minerals and is typically found in metamorphic rocks. Its chemical formula indicates that it is composed of magnesium (Mg), iron (Fe), silicon (Si), oxygen (O), and hydroxide (OH) ions. The mineral has a dark green to brownish color and forms long, thin crystals. Anthophyllite is not commonly used in industry and does not have any significant commercial applications. However, it is sometimes found in construction materials and can pose a health risk if it is inhaled as dust particles.