Anorthite -
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
: On Earth, pure anorthite is restricted primarily to basic and ultrabasic igneous rocks like gabbro, picrite, or specialized formations such as the Adirondack Mountains . anorthite
: Special anorthite-based glass-ceramics are used for joining SiCcap S i cap C Anorthite ( ) is the calcium-rich end-member of the series