The story
- Ancient Greek · derived fromκλάω“break”
- English todayalloclasite
allo- (“different”) + Ancient Greek κλάω (kláō, “break”) + -ite, due to its cleavage pattern distinct from that of marcasite.
Words from the same roots
Ancient Greekκλάω all →
clastogenictrichoclasis
Etymology from Wiktionary, CC BY-SA 4.0.