Anorthite (an = not, ortho = straight) is the calcium endmember of the plagioclase feldspar mineral series. The chemical formula of pure anorthite is CaAl 2 Si 2 O 8. Anorthite is found in mafic …

Anorthite Plagioclase. Comments: Opaque white crystal of anorthite with dark brown solidified lava coating. Location: Miyake-jima, Shizuoka, Japan. Scale: See Photo. © Jeff Weissman / …

Ca-rich end member of the plagioclase (Albite -Anorthite Series). High- and low-temperature structural modifications exist. Chemically and stoichiometrically very similar to lawsonite …

Anorthite is the calcic end member of the plagioclase feldspar series. In thin section, plagioclase feldspar grains often look like they’re sprinkled with dirt (PPL) or tiny confetti (XPL). You can …

Detailed description, properties, locality information guide about the plagioclase feldspar mineral anorthite.

Anorthite is used in ceramics and glass. Anorthite is also a useful mineral for geologists to understand the formation conditions of igneous rocks.

Anorthite, a feldspar mineral, calcium aluminosilicate (CaAl2Si2O8), that occurs as white or grayish, brittle, glassy crystals. Primarily a rock-forming mineral, it is used in the manufacture …

2024年2月6日 · Everything you ever wanted to know about anorthite. Find value guidelines, scientific data, expert comments, and more in our Gem Listings.

Anorthite is a rare feldspar and its only real use is as specimens for collectors. Found in igneous rocks and in contact metamorphic limestone, notable occurrences include Lake County, …

Chemistry: CaAl 2 Si 2 O 8, Calcium aluminum silicate. Uses: only as mineral specimens. Anorthite is an end member and one of the rarer members of the plagioclase series. The …