Welcome to Country Auto Sales. We are a full service Massachusetts used car dealer located in Southwick serving the towns of Hampden County, Springfield MA, Worcester MA, Boston MA, Westfield MA, Agawam MA, West Springfield MA, Longmeadow MA, Springfield MA, Chicopee MA, Windsor Locks CT, Holyoke MA, East Longmeadow MA, Easthampton MA, Ludlow MA, South Hadley MA, Somers CT, Wilbraham MA and Ellington CT.
Clastic sedimentary rocks form when individual grains (the sediment), made by fragments of rocks, minerals, or shells, are cemented together (the clastic sediemntary rock). These are the only type of rock that is NOT made simply of crystals, but rather fragments of other materials, broken and then reassembled together.
Minerals found in sedimentary rocks can be divided into 2 classes: 1  Allogenic minerals - These are formed elsewhere and transported into the area of deposition. 2  Authigenic minerals - These are minerals that are formed at the site of deposition, either by direct chemical precipitation or by later diagenetic processes.