Looking for a word like hemacitrin relating to deposits in the blood?

A term you might be looking for is "hemosiderin," which refers to an intracellular, insoluble storage complex of iron that can accumulate in tissues, particularly in cases of excess iron in the body. It is often associated with conditions like hemochromatosis and is a key indicator of iron overload. If you're specifically interested in deposits related to blood, "plasma proteins" might also be relevant, as they can form various deposits in blood-related conditions.