Chalcedony subtypes

Cornelian (red to brown red); Sard (red - brown);Chrysoprase (green, apple green); Heliotrope / Bloodstone (dark green with red spots); Moss Agate (colorless w/green inclusions); Dendritic Agate / Scenic / Mosquito (white gray with tree like inclusions); Banded Agate (all colors with bands of colors);...Subtypes of Agate; Eye; Layer; Dendritic; Enhydritic; Fortification; Orbicular; Moss; Scenic; Pseudo; Tubular; Sard; Brecciated; Jasper; onyx.