Color weathered Weathered: originated from minerals and pigments which are formed in the course of weathering. When bivalent irons are oxygenated to trivalent irons(Fe2+-Fe3+) in the rocks the green will change into the red or brown in the rock weathered color often crosscuts stratifications distributes along joints, cranny and fault belts, and shows spots, massive or unstable distribution in spaceColor: weathered Weathered: originated from minerals and pigments which are formed in the course of weathering. When bivalent irons are oxygenated to trivalent irons (Fe2+→Fe3+) in the rocks, the green will change into the red or brown in the rock. weathered color often crosscuts stratifications, distributes along joints, cranny and fault belts, and shows spots, massive or unstable distribution in space