noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A monoclinic-domatic mineral containing aluminum, hydrogen, oxygen, and silicon. Discredited as the name of the mineral in 2006. countable, dated, uncountable

Synonyms

All synonyms

halloysitehalloysite-10Å

Etymology

Named after German geologist Kurt Endell who discovered the mineral with a team, + -ite.

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