-Organic soil materials.
-Mineral soil materials.
-Resistant soil materials.
-Weatherable minerals.
-Andic soil materials.
-Albic soil materials.
-Gelic soil materials.
-Spodic soil materials.
-Volcanic glass
-Plinthite.
-Slicken sides.
jim items answered the question on October 8, 2018 at 11:37
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