Impact Glass
Impact Glass is broadly defined as tektites (podiasites), microtektites, and other pieces of glass generated by the impact of large meteorites or asteroids. They are usually found as black or green but small pieces have been recovered that are a composite of black and yellow from the K-T clastic bed in Beloc, Haiti and northern Mexico. Found in clay spheres that resemble tektite splash forms and microtektite forms as well, they are often broken and only fragments remain. More often than not, these broken fragments are much easier located than podiasites.
Microscopic fragments of broken impact glass are common to the Sylacauga Astrobleme area and are immediately recognized as being part of the impact event that happened here. For melted into some of the clear glass pieces are particles of shocked quartz fragments of various colors seen in the preceding photos. Multiple colored glass fragments, other than black and yellow, are certain to be new to the meteorite scene and may help explain how the two colors became mixed to begin with.