Aphanite

Rarity: Common

The most frequent rarity: most Wikipedia articles become Commons.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

In collections

Nobody has pulled it yet.

What Wikipedia says

Aphanites (adj. aphanitic; from Ancient Greek ἀφανής (aphanḗs) 'invisible') are igneous rocks that are so fine-grained that their component mineral crystals are not visible to the naked eye (in contrast to phanerites, in which the crystals are visible to the unaided eye).

Excerpt from the Wikipedia article “Aphanite”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Wilson44691, Public domain, via Wikimedia Commons.