One of the mysteries of the English language finally explained.
A compact cryptocrystalline siliceous rock, usually containing some graphite and argillaceous material (clay).
Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From French phtanite from ancient Greek ϕθάνειν to anticipate (of unknown origin) + French -ite, so named ‘because its thick schistoid texture and argillaceous character seem to announce beforehand its passage into schist’ (‘parce que sa texture schistoïde épaisse et son caractère argileux semblent annoncer d'avance son passage au schiste’).
In this article we explore how to impress employers with a spot-on CV.