Early American pies had thick, heavy crusts made with rough flour and suet. There are frozen pizzas with raw ingredients and self-rising crusts. It occurs as fine-grained masses in nodules, cavity fillings, and crusts. Painful crusts and erosions may develop on any mucosal surface. It is typically found as botryoidal or rounded masses and crusts, or vein fillings. Silver nitride may appear as black crystals, grains, crusts, or mirrorlike deposits on container walls. Some coralline algae develop into thick crusts which provide microhabitat for many invertebrates. This is followed by a rash that forms blisters and crusts over. This sub-phyla also includes the "classic" mushrooms, polypores, corals, chanterelles, crusts, puffballs and stinkhorns. The lesions progress to thick crusts which may bleed. The Yamato Basin and Tsushima Basin have thick ocean crusts. Its introduction followed market research showing that 40% of pizza customers preferred thick crusts. Bryophytes in soil crusts include mosses and liverworts. Nongeniculate corallines range from a few micrometres to several centimetres thick crusts. Among these is Lake Afrera, which has thick saline crusts on its banks.