At room temperature, silicon is usually a somewhat passive element. It does not respond with oxygen or nearly all of other elements. Drinking water, steam, and the majority of acids have small effect on the element. Once they die, their skeletons settle throughout the water column, and the silica redissolves. https://duker-glass-lined-pipe15825.thekatyblog.com/35100598/top-guidelines-of-tantalum-carbide-metal