Aphanite

//ˈæf.əˌnaɪt// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Certain dark igneous rocks having grain so fine that the individual crystals cannot be seen with the naked eye. countable, uncountable
  2. 2
    fine-grained homogeneous rock (such as basalt) containing minerals undetectable by the naked eye wordnet

Etymology

From Ancient Greek ἀφανής (aphanḗs, “indistinct, unseen, obscure”) + -ite.

Related phrases

naked eye

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.