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Sandstone is made up of well-sorted and well-rounded grains of quartz. This indicates that the clasts in the rocks have traveled a long distance from their source and were heavily eroded along the way. This sample is red due to the inclusion of iron in the chemical structure of the rock. This sample...
White Sandstone is a recognizable sedimentary rock made up of well sorted and rounded grains of quartz, indicating that the clasts in the rocks have traveled a long distance from their source and experienced heavy erosion along the way Perfect for lessons in identification and classification of...
The Mohs hardness test is a simple and useful way to identify minerals and assess their relative hardness. This kit includes everything you need to explore using Mohs hardness test to identify minerals The kit includes 1" pieces of nine different minerals, including Talc, Gypsum, Calcite, Fluorite,...
Concrete is a versatile and widely-used construction material composed of a mixture of cement, water, aggregates (such as sand, gravel, or crushed stone), and sometimes additives or admixtures. Its exceptional strength and durability make it a preferred choice for a variety of construction...
Travertine is a carbonate rock formed from gushing hot springs. The airy, porous material indicates an abundance of air bubbles moving through the rock as it solidified. While this characteristic is normally reserved for igneous rocks, travertine is unique in that it forms as a result of rapidly...
Pack of 12 Augen gneiss samples approximately 1" (3cm) in size Ideal for students learning about differential stresses and foliation in metamorphic rocks Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements...
Graywacke is a sedimentary rock composed of large, angular clasts within a fine-grained clay matrix. Formed during underwater avalanches, these rocks are often found on distal ocean shelves Ideal for identification & classification exercises. Useful when digging deeply into sedimentary petrology ....
The large clasts in conglomerate indicate that the pieces of rock underwent a large amount of rolling, bouncing, and other weathering to become round. This implies deposition in a river far from the source of the clasts Ideal for teaching students about rounding and sorting, as well as for...
From the same family as fool's gold, Chalcopyrite is a yellow crystalline mineral consisting of a sulfide of copper and iron. It is the principal ore of copper formed in hydrothermal veins Chalcopyrite's formation exhibits fracture and has a brassy luster which make it an excellent tool for studying...