Standard Lemma guide

phlogopite

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ˈflɒɡəpaɪt/
  • CMU ARPABET: F L AA1 G AH0 P AY2 T Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A mica mineral with the chemical formula KMg3AlSi3O10(F,OH)2, a basic potassium magnesium aluminosilicate, used as an insulator

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: chemistry, geography, geology, mineralogy, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a brown form of mica consisting of hydrous silicate of potassium and magnesium and aluminum

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: mica, isinglass

History

Etymology

From German Phlogopit, from Ancient Greek φλογωπός (phlogōpós, “fiery-looking”) + -ite.

Across languages

Translations

5 source translations are retained for this English entry.

  • Finnish: flogopiitti — a mica, the magnesium endmember of biotite
  • French: phlogopite — a mica, the magnesium endmember of biotite
  • German: Phlogopit — a mica, the magnesium endmember of biotite
  • Italian: flogopite — a mica, the magnesium endmember of biotite
  • Spanish: flogopita — a mica, the magnesium endmember of biotite