Pearl or parasite enters a bivalve mollusk and settles inside the shell. The mollusk, irritated by the intruder, forms a pearl sac of external mantle tissue cells and secretes the calcium carbonate and conchiolin to cover the irritant. This secretion process is repeated many times, thus producing a pearl. Natural pearls come in many shapes, with perfectly round ones being comparatively rare. Typically, the build-up of a natural pearl consists of a brown central zone formed by columnar calcium carbonate (usually calcite, sometimes columnar aragonite) and a yellowish to white outer zone consisting of nacre (tabular aragonite). In a pearl cross-section
Pearl (drag queen) Pearl (drag queen) Pearl, occasionally known as Pearl Liaison, is the stage name of American drag performer and record producer Matthew James Lent. Lent garnered fame through competing on the seventh season of "RuPaul's Drag Race", finishing joint runner-up. Lent grew up in St. Petersburg, Florida with his mother and two sisters. He spent time drawing "rich old ladies with big diamond rings and furs", which eventually morphed into his drag persona. After moving to Chicago, Lent began performing in drag in 2012, alongside Kim Chi, using the stage name Pearl. He has described Pearl's persona as a "stepford wife