Igneous rocks are formed when magma or lava cools and solidifies Eisco Labs™ Tech Cut Rock and Mineral samples are sourced from a variety of locations around the world and are processed in Victor, NY Set includes twelve different igneous rocks: Quartz Point, Andesite, Basalt, Tuff, Gabbro, White Granite, Pink Granite, Obsidian, Peridotite, Pumice, Rhyolite and Scoria While each specimen will vary in shape and size, they will measure approximately 1 in
each Test hardness, streak color, magnetic properties, appearance, and effervescence to identify the different specimens in this kit Packaged in a box with substantial protective foam padding to store and preserve specimens Ideal for home schooling or a fun home science activity, and is a great addition to any classroom or geology laboratory Useful for demonstrations in identifying and classifying rocks and minerals, especially for group activities