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Back to Basics: What is Mother of Pearl?

Many people would recognize mother of pearl when they saw it, but how many of us actually know what this material is, where it comes from or how it is made? Or, more specifically, how many know the difference between mother of pearl and pearls?

The Basics

What is mother of pearl? How is it different from a pearl gemstone?
What is mother of pearl? How is it different from a pearl gemstone? Image Source: Wikipedia

Unsurprisingly, pearls and mother of pearl are made of the same substance: nacre, an iridescent material composed of calcium carbonate.

Nacre is created by mollusks to protect their soft interior tissue. The difference between pearls and mother of pearl is placement, with the latter being formed on the inner linings of a shell.

A pearl, on the other hand, is created when a foreign object enters the shell and the mollusk encases the foreign object in order to protect itself. The material used to create the encasement is the same nacre, also called mother of pearl.

The end result of this foreign object being encased in nacre is a round-shaped pearl, whereas mother of pearl takes the shape of the shell that it lines.

Black Pearl Jewelry

JEWELRY SPOTLIGHT:

Like pearls, mother of pearl comes in stunning color variations, from white to silver, steel blue, green, bronze or even black. If you love iridescent black finishes, make sure to complete your jewelry collection with a stunning black pearl necklace, suitable for posh special occasions.

How Does Mother of Pearl Get Its Iridescent Appearance?

Mother of Pearl Veneer Decor for Autos
Mother of Pearl Veneer Decor for Autos. Image Source: Aqua Blue Maui

Have you wondered about the source of mother of pearl’s iridescent appearance? The answer is in the nacre material itself, which is secreted by the epithelial cells. The epithelial cells secrete thin platelets, or building blocks of nacre.

READ MORE:  What is Mother of Pearl? Where Does It Come From?

Thin platelets of calcium carbonate secreted by the mollusk have a width which matches that of many light waves. This is what gives the nacre its unique beauty, sought after in the creation of everything from pearl jewelry and watches to furniture.

Nature’s Iridescent Treasure

Mother-of-Pearl-Necklace
Mother-of-Pearl Necklace. Image Source: Femme Creations

When you hear the term mother of pearl jewelry, this is not in reference to the nacre that coats the outside of the gemstones. Instead, it refers to the nacre that can be found coating the inside layer of the mollusk’s shell.

When the iridescent material is set in metals and other jewelry pieces, only a thin layer of the sediment is used, similar to a boulder opal. Jewelers can then cut or carve the substance into various shapes.

This allows the creation of striking, unique jewelry pieces that truly depict the beauty of nature itself.

Jewelry Spotlight

Check out how gorgeous this Men's Mother of Pearl Wedding Band looks with all it's sparkle, shine and luster.
Check out how gorgeous this Men’s Wedding Band looks with all its sparkle, shine and luster. Image Source: Brilliance

Both pearl and mother of pearl jewelry fall under the category of organic jewelry.  These are pieces made with gems that originate from living organisms, plants or creatures. However, there are some major differences between the two.

Mother of pearl jewelry looks very different from pearl jewelry in various ways. Jewelry pieces created using nacre are generally large-sized focal pieces, because they tend to take up the entire interior of the mollusk shells. Moreover, they are almost always placed in fine jewelry settings.

READ MORE:  Purchasing Pearls: How to get the most for your money

JEWELRY GUIDE:
FRESHWATER PEARLS

Many people who opt for mother of pearl jewelry do so because they believe that actual pearl jewelry would far exceed their budget, but this simply isn’t the case. Freshwater pearls, for example, feature consumer-friendly price points and still possess stunning quality. They’re also available in a variety of incredible colors that include white, pink, and peach. Browse our collection of freshwater pearl jewelry for pieces that are undeniably elegant and easy on the wallet.

Jewelry pieces made with pearls are generally crafted by drilling holes in the gemstones, and stringing them together, rather than setting them. And, since pearls tend to only grow to certain sizes, these jewelry pieces are usually smaller and contain rounded, thick gems.

The Test of Authenticity

Pearl Tooth Test
Pearl Tooth Test. Image Source: Alina Blaga

Wondering whether or not your mother of pearl jewelry is real of fake? Well, you can use the pearl tooth test to check for authenticity. Simply tap the gem against your teeth. If it’s plastic, the bead will create a muted sound, whereas the real deal will “click” instead.

Click here to learn more about the pearl tooth test.

In most cases, alloys are used to make jewelry pieces. Some people are allergic to copper and nickel, which can lead to chemical reactions. This tends to cause the jewelry to fade and/or change colors.

READ MORE:  How to Clean Pearls Safely and Avoid Ruining Them

Pearls are 100% hypoallergenic gemstones. Therefore, it’s very rare for a person to suffer an allergic reaction to mother or pearl and pearl jewelry.

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