This layering multi-colored sand in glass containers is a pretty art form, it's create by Ako Tsubaki, Japanese fine artist. The process of creating it is not often examined, the intricate process of making sand art creations is unveiled anyone can do it if you like to learn.
She
is a fine artist with beautiful and colorful imagination which is quite
evident through her paintings. - See more at:
http://www.e-junkie.info/2011/06/ako-tsubaki-creating-colorful-sand-art.html#sthash.QCoUNPCA.dpuf
glass sand art