The shell of the volcanic snail is made up of three layers. The middle layer is organic, proteinous, and very tough. It is so tough that scientists are bent on figuring out how to use its features to create military-grade protective gear from it.
Left to right: -2450m, Kairei vent field (25°19.239S, 70°02.429E), Central Indian Ridge; -2785m, Longqi vent field (37°47.03'S, 49°38.97'E), Southwest Indian Ridge (Type locality); -2606m, Solitaire vent field (19°33.413S, 65°50.888E), Central Indian Ridge, Mauritius.
The volcano snail has hundreds of pieces of iron attached to its foot called sclerites. Their actual function is unknown.