heptaphyllite

noun

hep·​ta·​phyllite

¦heptə+

: any of a group of micas (as muscovite and other light-colored micas) with seven metallic ions per ten oxygen and two hydroxyl ions compare octaphyllite

Word History

Etymology

hepta- + phyllite

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Rhymes for heptaphyllite

• actinolite
• adipocyte
• amphibolite
• anorthosite
• anthophyllite
• aragonite
• carbonatite
• cassiterite
• cristobalite
• crocidolite
• diatomite
• dithionite