The Classical Elements

Element	Letter	Color	Primary Quality	Secondary Quality	Polyhedron	humor
Water	U (Υ; udor = water)	blue	Cold	Wet	icosahedron (20)	phlegm
Earth	G (Γ; gaia = earth)	green	Dry	Cold	cube (6)	black bile
Spirit	I (Ι; Idea = idea)	-	-	-	dodecahedron (12)	-
Fire	Th (or EI) (Θ; Thermos = heat or ΕΙ; Eelios = Sun)	red	Hot	Dry	tetrahedron (4)	yellow bile
Air	A (Α; Aer = air)	yellow	Wet	Hot	octahedron (8)	blood