Raw Aphanitic Basalt Igneous Rock Hand Sample, Approx 3 inch

This Eisco raw basalt hand sample measures approximately 3 inches and provides a tangible representation of an aphanitic igneous rock found predominantly in Earth's oceanic crust. Basalt forms rapidly from iron-rich magma, resulting in its distinctive dark color and fine-grained texture. The larger hand-sized specimen allows for easy handling, clear observation, and detailed examination. Sourced globally and hand-processed in Victor, NY. Ideal for geology and earth science classrooms teaching igneous rock classification, volcanic processes, mineral composition, and tectonic activity, aligned with Next Generation Science Standards.