It contains from about 16 to 35 percent calcium carbonate equivalent and is slightly alkaline or moderately alkaline. Secondary calcium carbonate occurs as few to many, fine or medium accumulations. Gypsum occurs as few or common nests and crystals in most pedons. Faint mottles are in the B horizon, but distinct or prominent redoximorphic features typically are below depths of 18 inches. The C horizons have hue to 2.5Y or 5Y, value to 5 to 7 and 4 to 6 moist, and chroma of 1 to 4.
Redoximorphic features range from few to many, fine or medium, distinct or prominent.
The C horizons typically are silt loam or silty clay loam, but are sandy loam, loam, and clay loam below depths of 40 inches in some pedons. They are slightly or moderately alkaline. Some pedons do not have accumulations of gypsum. This is the Firesteel series. Firesteel soils have sola terminated by siltsone at depths of 24 to 40 inches.