
1) Sedimentary rock
Found on
https://www.crosswordclues.com/clue/calcisiltite

Calcisiltite is a type of limestone that is composed predominantly, more than 50 percent, of detrital (transported) silt-size carbonate grains. These grains consist either of the silt-size particles of ooids, fragments of fossil shells, fragments of older limestones and dolomites, intraclasts, pellets, other carbonate grains, or some combination o...
Found on
http://en.wikipedia.org/wiki/Calcisiltite
No exact match found.