anorthite
Noun
Meaning
A mineral of the feldspar family, commonly occurring in small glassy crystals, also a constituent of some igneous rocks. It is a lime feldspar. See Feldspar.
Source: Webster's dictionarySynonyms
feldspar
gabbro
moonstone
amphibole
sunstone
plagioclase
orthoclase
albite
diorite
oligoclase
syenite
amazonite
labradorite
microcline
adamite
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Hypernyms
Examples
There are several named plagioclase feldspars that fall between albite and anorthite in the series.
The following table shows their compositions in terms of constituent anorthite and albite percentages.