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“Non-nacreous pearls. Interestingly, not all “pearls” are made of nacre, the combination of aragonite (calcium carbonate) and conchiolin that is secreted from a mollusk and layered together to form what scientists call a nacreous pearl. Some marine animals, like the Queen conch and the melo melo sea snail, produce gorgeous gems made up of non-nacreous calcium carbonate. Calcite, rather than aragonite, is the primary material here. (This material, by the way, is said to be similar to the stuff that produces kidney stones in humans.) ”
Mature mommies porn tube Because they are non-nacreous, the conch “pearl” and the melo melo “pearl” are not considered true pearls by gemologists. Instead, they are classified as calcareous concretions and referred to as “pearls.” Note the quotation marks surrounding the word “pearl.” This punctuation is used to signify that the gem is not a true, nacreous pearl.
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Conch “pearls” are natural gems found in the Queen conch, Strombus gigas, a beautiful marine animal prized for its gorgeous shell and succulent meat. (Walk into any popular Caribbean eatery and you’re likely to find a selection of conch chowder and conch fritters on the menu. Note: Make sure to pronounce it correctly: conk, or you might get conched over the head.) The official symbol of the Bahamas and the Florida Keys, the Queen conch is fished in the warm, shallow waters of the Caribbean where it lives. The “pearls” are a delightful byproduct found by fisherman when the meat and shell are harvested.