for the non-pedologists:
Sandy clay is a textural box on the soil triangle. It’s small and requires the absence of silt. The reason we joke about them not existing is because of the size of the box and how far apart the two grain sizes are. There are very few scenarios where sand and clay would be deposited and not silt.
Damn this one helped a ton. Apperantly it’s gravely sandy loam, but they 100% have the rock composition wrong, but that’s to be expected because my property is on a ridge.