Has anyone seen my neutral pointer?

[Angrboda]

Okay, tell me ANY of the material properties of a photon.  What's it's mass?  It's volume?  What color is it?  What shape?  What it the mechanism by which it does any of the things it does?

What happens in double-slit experiments with quantum erasers?  What are the material properties of a photon during that process?  Most important-- does it HAVE material properties, other than a wave function and a result when it collapses onto a photographic plate?

Photons have no mass, but they have energy E = hf = hc/λ.

Under the photon theory of light, a photon is defined as a discrete bundle (or quantum) of electromagnetic (or light) energy. Photons are always in motion and, in a vacuum, have a constant speed of light to all observers, at the vacuum speed of light (more commonly just called the speed of light) of c = 2.998 x 108 m/s.

http://physics.about.com/od/lightoptics/f/photon.htm

Photons are energy.  They aren't going to have the same measurables as matter.  But that's what we're talking about: measurement.  It's mass, it's volume, it's color.  These are all measurements.  The formulas depicting the behavior of the material world is founded on these measurements and in part defined by them.  The measure of a photon is described by the theory.  Implying that photons have no measurements is simply nonsensical.  You're simply defining the acceptable measurements as ones which apply to macroscopic phenomena (volume, color) and when the measurement is given in terms of quantum equations, you resist it.  That's how we measure things in the subatomic world.  Get over it.