buy various colors of crushed glass for art use

I am looking for crushed colored glass to be used in art sculptures. I would prefer a variety of colors: black, light blue, dark blue, purple, white, brown, green. I do not need a large volume of each color. I would also ask about proper adhesives for embedding this glass that would dry clear, leaving no film at all.

I would want small pieces of colored glass, but not extremely fine. It would be used on a vertical surface most of the time.

Are samples available for color choices?