== Lunar Retroreflector Rainbow / Planetary Crystalographic Reflections == 

 Lunar Retroreflector Rainbow / Planetary Crystalographic Reflections    

 Has anyone read anywhere, any references to the generation of a lunar retroreflector rainbow image, or detailed descriptive retroreflector map, for the lunar surface, from the beginning of astro-photography, through NASA, to current research, covering such topics as described here?  The lunar surface contains a variable portion of spheroidal glass, from volcanic, meteoric, and asteroidal impacts.  Such glassy objects, will generate, at the primary rainbow angle, from the solar nadir, a retroreflection of net sunlight, compared to the natural lunar surface albedo.  If the spheres are well rounded, they will generate a rainbow, from the sunlight, and if they are rough and ellipsoidal, there will be a statistical spread of retroreflection light, from the sunlight.  A sequence of images with (1) high pixel resolution, (2) high dynamic range luminance resolution, (3) high luminance resolution, (4) multi-spectral, and (5) carefully calibrated characteristics to account for sensor and atmosphere, of the moon, as it crosses into and out of the region of the waxing and waning gibbous phase, around both ~42 degree primary rainbow separations, from the solar nadir, (these images) can be used to morphologically, algorithmically, and differentially calculate the additional reflectance of the whole moon's surface, caused by the various distributions of the glass spheroids across the lunar surface.  The spectral characteristics of the net-retroreflectance luminance, could also be used to estimate the sphere distribution, spheroid shape and size distributions, and spheroid glass types, as dispersed across the lunar surface.    

 I have seen topographic maps of the moon from NASA high resolution images from the 1960's, color maps of the moon from normal reflectance from different rock types, halo glory at the solar nadir, and heard of transient lunar phenomena, but never seen any images, but for lunar glass spheroid retroreflectors, I have seen no data of images, maps, or spheroid characterized distributions.    

 Neither have I heard of any similar images taken from the probes sent to Venus, Jupiter, Saturn, Mars, or their moons, or their rings (where applicable), of primary rainbow spheroidal light characterizations (or hexagonal reflection zones for ice crystals of Saturn's rings, where sensors may be capable of sensing the additional (net) retroreflection light, with such differential light calculations in multiple images.