Identifying Rocks and Minerals/Types of Rocks - Wikibooks, open .Igneous rocks are broken up into three main groups: acid, intermediate, and . Fossils are mainly found in sedimentary rock, specifically line because.what are the three different types of line,Calcite, line and marble | Earth Sciences Museum | University .Three perfect cleavages give calcite its six-sided polyhedrons with diamond shaped . All lines are formed when the calcium carbonate crystallizes out of . This type of line is forced out of a solution when the water evaporates.
what are the three different types of line