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“plagioclase”
plagioclase
Any of the feldspar minerals varying in composition from acidic albite to basic anorthite found in most igneous rocks and which shows twinning striations on good cleavage surfaces.
This entry is located in the following units:
clast-, clas-, -clastic, -clast, -clase, -clasia, -clasis, -clasis, -clasmic, -clasm
(page 4)
plagi-, plagio- +
(page 1)