Description
A wonderful starburst of Aragonite crystals protected in a vug of argillaceous marl. The acicular crystals, are gemmy translucent, amber-colored, and sharp. The entire aggregate is pristine, and exceedingly aesthetic. The locality La Serna is one of the many quarries for clay extraction from Miocene age “Arcillas Rojas de La Sagra” a geological unit which outcrops in many places in La Sagra region.