Calcite Edit Fossil Record Talk1 5,559pages on this wiki Small shelly fossils are sometimes preserved in Calcite. This article is a stub. You can help Fossil Wiki by expanding it. Read more Sediment is any particulate matter that can be transported by fluid flow, and which eventually... Sediment In geology, rock is a naturally occurring solid aggregate of minerals and/or mineraloids. Rock (geology) Silica is a mineral. Small shelly fossils are commonly composed of Silica. it is w still found today Silica Categories: Article stubs Rocks Add category Cancel Save