Introductory Earth Science Rock and Mineral Collection, Designed to match most introductory-level textbooks, Each

Details

This all-in-one collection covers a broad range of demonstration needs! The 75 specimens for observation, comparison, and testing include 13 igneous rocks; 14 sedimentary rocks; 9 metamorphic rocks; 17 rock-forming minerals; 9 samples from the hardness scale (diamond omitted); and 13 examples of important physical properties (specific gravity, tenacity, cleavage, fracture, luster, streak, refraction, magnetism, and acid test).