PLAGIOCLASE
Dictionary entry overview: What does plagioclase mean?
• PLAGIOCLASE (noun)
The noun PLAGIOCLASE has 1 sense:
1. any of a series of triclinic feldspars that form rocks
Familiarity information: PLAGIOCLASE used as a noun is very rare.
Dictionary entry details
• PLAGIOCLASE (noun)
Meaning:
Any of a series of triclinic feldspars that form rocks
Classified under:
Nouns denoting substances
Synonyms:
oligoclase; plagioclase
Hypernyms ("plagioclase" is a kind of...):
feldspar; felspar (any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium)
Hyponyms (each of the following is a kind of "plagioclase"):
albite; white feldspar (a widely distributed feldspar that forms rocks)
anorthite (rare plagioclastic feldspar occurring in many igneous rocks)
Holonyms ("plagioclase" is a substance of...):
dacite (a grey volcanic rock containing plagioclase and quartz and other crystalline minerals)
basalt (the commonest type of solidified lava; a dense dark grey fine-grained igneous rock that is composed chiefly of plagioclase feldspar and pyroxene)