Anorthite

: Approximately 6 to 6.5 on the Mohs scale, often used to distinguish it from softer minerals like marble or quartzite. Density : Approximately

ceramic components in high-temperature environments, maintaining strength up to Anorthite ( An90−100cap A n sub 90 minus 100 end-sub An0−10cap A n sub 0 minus 10 end-sub Primary Cation Common Origin High-temperature magmas, Moon Low-temperature magmas, Earth's crust Density Slightly higher Slightly lower Primary Rock Anorthosite, Gabbro Granite, Rhyolite anorthite

Anorthite is characterized by a three-dimensional network structure of SiO4cap S i cap O sub 4 AlO4cap A l cap O sub 4 tetrahedra. : : Approximately 6 to 6