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Natural pearls come in many shapes, however perfectly round ones are very rare. They are made up of calcium carbonate and conchiolin and are formed when a microscopic intruder or parasite enters a mollusk and settles inside the shell. The mollusk is irritated by the intruder and secrets the conchiolin/calcium carbonate repeatedly until a pearl is formed. Cultured pearls are formed when a tiny of mantle tissue from a donar shell is transplanted into a recipient shell, which causes a pearl sac to form. Such pearls can be produced using freshwater or seawater shells. They also go by the following names: Akoya, white or golden South sea, and black Tahitian. Imitation pearls, however, man made with glass and coated with a solution. They may look like pearls but do not have the same smoothness or luster as real pearls
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What three items did Marco polo trade?
Gems, Jewels, and different kinds of fabrics.
Types of pearl?
There are five different types of pearls, including natural pearls, cultured pearls, saltwater pearls, freshwater pearls, and imitation pearls.
How many different kinds of Lamborghini?
There are about 30 different kinds
What are two kinds of pearls?
Answer There are many types of pearls, both natural and cultured, but all pearls may be separated into two distinct groups. Saltwater PearlsSaltwater pearls, whether cultured or natural, are pearls which grow in marine mollusks in a saline environment such as the ocean. Freshwater PearlsFreshwater pears, whether cultured or natural, are pearls which grown in freshwater mussels in non-saline environments such as rivers, lakes and streams.
Why are there so many different kinds of castles?
Because there were many different kinds of wealthy people.
Are black and white pearls a different kind of pearl?
By oyster's species, origin, shape and color, Pearls are further classified into the categories below: natural pearl, cultured pearls, freshwater pearls, saltwater pearl, akoya pearls, south sea pearls, tahitian pearls... there are still dozen kinds of pearls available while the most popular on the market are freshwater, akoya, south sea and tahitian. Tahitian pearls are borned with black colors, other three types of pearls have white color available. here is a detailed explainations about all the pearl types, Please click onto the related link below.
Are there different kinds of billing software for different industries?
Yes, there are many different kinds of billing software. Many different kinds are used even within the same industry.
How is a black pearl made?
Different species of oyster make different kinds of pearls: white pearl oysters make shades of white (cream, pink, yellow, gold, silver) and black pearl oysters make shades of black (green, purple, blue, grey.)
How many seats are there?
There are many different kinds of seats in the world. There are millions of different kinds of seats in the world.
A deli has 52 different kinds of cold cuts if there are eighteen fewer different kinds of cheese then meats then how many kinds of cheese and how many kinds of meats are there?
35
What word means many different kinds?
Many different kinds means lets say an apple and a orange are not the same but it is DIFFERENT
How many different colored natural pearls are there?
There are a number of different colored natural pearls available. Some of those colors include white, pink, silver, cream, brown, green, blue, black and yellow.
