Raw Gray Limestone Sedimentary Rock Hand Sample, Approx 3 inch

This raw gray limestone hand sample is a sedimentary rock formed primarily from organic material containing calcium carbonate, often deposited in marine environments. Each specimen measures approximately 3 inches in length, with slight variation in shape, size, and color. Excellent for demonstrating the effervescence of calcium carbonate when exposed to acid, and ideal for rock identification and classification exercises. Each sample is hand-selected and processed by a geologist in Victor, NY, packaged in a transparent labeled and barcoded bag.