5-1/2 to 6-1/4 inches Polished Green Abalone Shells for Sale in Bulk and sold Individually, Haliotis fulgens for collectors, display and for sage smudge bowls.   The rough exterior of the shell has been removed with a chemical process revealing a beautiful iridescent layer of blues, greens, silvers and mother of pearl.   The natural exterior of the shell is usually brown, marked with low, flat ribs, and the interior of the shell is iridescent blue and greens with black and silver accents.