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
, which is less dense than many other silicate minerals like olivine or pyroxene. anorthite
: Approximately 6 to 6.5 on the Mohs scale, often used to distinguish it from softer minerals like marble or quartzite. Density : Approximately Anorthite ( ) is the calcium-rich end-member of the series
: On Earth, pure anorthite is restricted primarily to basic and ultrabasic igneous rocks like gabbro, picrite, or specialized formations such as the Adirondack Mountains . Composition and Physical Properties
Anorthite ( ) is the calcium-rich end-member of the series. While it is a primary rock-forming mineral that is relatively rare in its pure form on Earth, it is a dominant component of the lunar highlands . 1. Composition and Physical Properties