3.9" Aragonite Mineral Red Crystal Cluster Specimen Tazouta Morocco

Location: Tazouta, Morocco

Weight: 14.9 Ounces

Dimensions: 3.9 Inches Long, 2.9 Inches Wide, 2.5 Inches Thick

The item pictured is the item you will receive. 

Aragonite is a calcium carbonate mineral that has played a significant role in Earth’s geological and biological history. It forms readily near the planet’s surface and serves as a primary building material for many marine organisms, particularly invertebrates that construct shells and exoskeletons. The colorful appearance of many seashells reflects the natural properties of aragonite, demonstrating how this mineral contributes directly to biodiversity and marine ecosystems.

As a polymorph of calcite, aragonite shares the same chemical composition but differs in crystal structure. This subtle difference influences mineral stability depending on ocean chemistry and environmental conditions. Although calcite is generally more stable in modern oceans, geological records reveal periods when aragonite was more abundant and widespread, shaping the composition of ancient marine sediments.

Due to their similar appearance and physical characteristics, distinguishing between aragonite and calcite is often challenging without specialized analysis. Together, these minerals provide important clues about past climate conditions, ocean chemistry cycles, and the evolution of biomineralization in marine organisms throughout Earth’s history.