Loose Bushy Chips -- Loose long strings (some like wire) can gather in bundles of very little weight. Weight is difficult to determine.
Tight Bushy Chips -- Long strings - Have been compressed by some manner which means greater density and easier handling; commonly referred to as birds nests; weight may vary widely.
Broken Chips -- Short broken curls - Referred to as 6's and 9's because of their general shape; this is the most common type of chip.
Fine Chips -- Granular, free flowing; fines range from filings to very small chunks.