Trivia

Hard

Pearls Are Made From Layers Of A Compound Known As?

Opaline
Nacre
Carbonite
Mollusca

Answer: Nacre

Nacre, commonly known as “mother of pearl” is the iridescent layer found on the inner surface of some mollusc species. The composite compound is made from a combination of organic and inorganic material and, on a microscopic level, is composed of tiny little hexagonal platelets of aragonite (a form of calcium carbonate) locked in place by layers of elastic biopolymers (such as chitin, lustrin and silk-like proteins).

While the compound appears in several different mollusc groups, of most interest to us (and to the jewelry industry) are the pearl oyster and the freshwater pearl mussel; molluscs that not only produce the lining along the inside of their shell but also produce balls of the lining. Pearls are simply thousands upon thousands of layers of nacre produced and layered away from the inner surface of the shell.

More Trivia Questions

Trivia

Easy

Johnny Carson Once Made A Joke On The Tonight Show That Led To A Shortage Of?

Trivia

Hard

Which Musician Has Made Multiple Cameos On Star Trek?

Trivia

Easy

Which Defunct 1990s Web Host Is Now Archived By The Pirate Bay?

Trivia

Hard

The Deepest Lake In The United States Is?

Trivia

Hard

The Largest Number Of Country Names Start With The Letter?

S U
M T

Trivia

Easy

Which Character Serves As The Mascot of Pixar Animation Studios?

Trivia

Very Hard

The Largest Irrigation Project In The World Is Located In?

Trivia

Hard

Mixing Up The Starting Sounds Of Words In A Sentence Is Known As A?

Trivia

Hard

Consuming Chocolate Proves Fatal For Many Dogs Because Of Which Compound?