Description

Frey Scientific Rock Collection Set of 3 includes sedimentary, metamorphic and igneous rock specimens, with 15 specimens as the representative of each type of rock. Set has sedimentary specimens identified by clastic, chemical and organic categories while metamorphic specimens are identified by parent material and structure and exhibited with the characteristic changes caused by heat, pressure and/or chemical action. Igneous specimens clearly display the varying size, shape and arrangement of constituent particles of phaneritic, porphyritic and aphanitic textures. Number-coded rock specimens measure 1-1/2 in x 1-1/2 in and come in a compartmented container.