Image credit: James St. John
CaCO3
fossiliferous limestone coquina oolite travertine
limestone breccia micrite chalk
(Ca,Mg)(CO3)2 dolostone
Fe2O3 ironstone
conglomerate breccia sandstone shale
Flickr Image gallery, James St. John: oolite
Mindat.org image gallery: ooid limestone
Google images: oolite
Mindat.org: About ooid limestone
Sandatlas: oolite