Viper jasper from Mexico is available in rough sizes from one to approximately four pounds per piece. (Stock 395) Viper jasper is a silica rich conglomerate with white to ivory colored clastic particles in a pink to lavender matrix.  It's always nice to try a new gemstone material and add it to your collection. The white with pink to lavender coloring is unusual and should make some beautiful jewelry. The lavender shades are always popular.