One version of a "planetary"-based symbol of sex (the sexes), using dimmed versions of the old "alchemical" colors (Mars=iron=rust=red and 
Venus=copper=patina=green -- see File:17101.gif / File:Rosicrucian Rose.jpg), offered as an alternative to en:Image:Unity XX-XY.JPG .  For alternative variants, see Sexes-planetary-sym.svg:  and Sexes-planetary-sym-pinkblue.svg: , or (with slightly different symbolism)  HeteroSym.svg: , HeteroSym-pinkblue.svg: , and HeteroSym-pinkblue2.svg: .
This vector image includes elements that have been taken or adapted from this file:
AnonMoos