Conch pearls are formed by concentric layers of fibrous crystals, and this layering often produces the desired flame structure, which is characteristic of conch pearls. The pearls have a porcelain ...

Here are Drs. Héctor Acosta-Salmón and Megan Davis, co-inventors, standing beside an aquaculture tank at Florida Atlantic University's Harbor Branch Oceanographic Institute. The queen conch is farmed ...

Where once we treasured pearls for their uniform-sized orbs, flawless lustre and perfect white hue, all politely lined up in double strands, today we are witnessing a sea change – and the weirder and ...