This Collection contains 25 Types of Rare & Basic Rocks Specimens of Igneous, Sedimentary & Metamorphic Rocks Types. These Rocks & Minerals Collections used for Practical Knowledge of Rocks Specimens & Minerals Specimens. A great collection to begin your study of sedimentary, metmore...
A low cost simple teaching aid. instead of focussing slides in a microscope you can just push in a bioslide and examine the same without any hassle of focussing or locating. An inexpensive and practical alternative to microscopes. more...