Silt is granular material of a size between sand and clay, whose mineral origin is quartz[1] and feldspar. Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension with water (also known as a suspended load) and soil in a body of water such as a river. It may also exist as soil deposited at the bottom of a water body, like mudflows from landslides. Silt has a moderate specific area with a typically non-sticky, plastic feel.
Compare the raccoon droppings to that of a medium-sized dog. Raccoon poop looks much like dog feces: dark, tubular in shape, up to 1/2 inch or so in diameter and usually in well-formed, blunt segments. They many have a strong odor. Older feces can resemble dry leaves or a small pile of debris.
Raccoon Fact Sheet. Size and Weight: The adult raccoon is a medium-sized mammal and the largest of the Procyonidae family. It averages 24 to 38 inches in length and can weigh between 14 to 23 lbs., or more, depending upon habitat and available food.