Ripple Stream Geosciences Semi-Precious Rocks and Minerals Collection, Samples for Studying (Set of 18)
Brand: Ripple Stream

This school rocks and minerals collection contains both daily common and rare semi-precious stone samples，can provides students with hands-on experience testing physical properties. The collection and materials are designed to correlate with standard earth science texts, and can be used for demonstrating the physical properties of minerals, including hardness, specific gravity, luster, tenacity, cleavage, fracture, streak, and magnetism. The collection includes 18 rock and mineral samples, and a mineral guide. This collection is great both at home and in the classroom, designed for grades 4-18. It is also a good choice of adding your collection.

Collection includes 18 Common and Semi-Precious Rocks and Minerals
Each sample has introduction in the color sheet.
Stones measure approximately 1"-2" in size
Rock samples include igneous, sedimentary, and metamorphic
Not for children under 3 yrs. CHOKING HAZARD -- Small parts