The story
Derived from ancient Greek λειρός : pale, and κουία : powder; named by Wilhelm Karl von Haidinger in 1825. The name reflects the appearance of the streak.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A blue monoclinic mineral composed of aluminium, copper, arsenate, and hydroxide. Full definition →
Derived from ancient Greek λειρός : pale, and κουία : powder; named by Wilhelm Karl von Haidinger in 1825. The name reflects the appearance of the streak.
Etymology from Wiktionary, CC BY-SA 4.0.