Pearl
A pearl is a hard object produced within the soft tissue (specifically the mantle) of a living shelled mollusk. Just like the shell of a clam, a pearl is made up of calcium carbonate in minute crystalline form, which has been deposited in concentric layers. The ideal pearl is perfectly round and smooth, but many other shapes of pearls (baroque pearls) occur. The finest quality natural pearls have been highly valued as gemstones and objects of beauty for many centuries, and because of this, the word pearl has become a metaphor for something very rare, fine, admirable, and valuable.
Read more about Pearl.
Famous quotes containing the word pearl:
“We’re in greater danger today than we were the day after Pearl Harbor. Our military is absolutely incapable of defending this country.”
—Ronald Reagan (b. 1911)
“High on a throne of royal state, which far
Outshone the wealth of Ormus and of Ind,
Or where the gorgeous East with richest hand
Show’rs on her kings barbaric pearl and gold,
Satan exalted sat, by merit raised
To that bad eminence; and, from despair
Thus high uplifted beyond hope, aspires
Beyond thus high, insatiate to pursue
Vain war with Heav’n, and by success untaught,
His proud imaginations”
—John Milton (1608–1674)