The soil chromatrography of Foraster indicates fertile soil. The overall impression is that the chroma developed a visible pattern with a golden-brown color. However, the chroma is less bright and less complex than others.

The central zone is yellow-golden, which is a general indicator for fertile soil. Channels are visible and penetrate all zones. This indicates presence of humus and nutrients. One concentric ring is clearly visible and separated. The brown colouration accumulates at the end of the median zone and is disconnected from the more inner median zone. This is an indicator for an excess of soluble minerals and an imbalance between nutrients and humus. No spikes have developed in this chroma.