Pinctada - Wikipedia
Pinctada is a genus of saltwater oysters, marine bivalve mollusks in the family Pteriidae. These pearl oysters have a strong inner shell layer composed of nacre, also known as "mother of pearl".
How Do Oysters Make Pearls? - HowStuffWorks
2023年8月30日 · To understand how pearls are formed in oysters, you must first understand an oyster's basic anatomy. Oysters are bivalves, which means that its shell is made of two parts, …
How do oysters make pearls? - Live Science
2022年7月22日 · While nearly all of the world's most treasured gemstones can be found buried underground, pearls hide in a far more unexpected setting: inside a shell. So how exactly did …
Pinctada margaritifera - Wikipedia
Pinctada margaritifera, commonly known as the black-lip pearl oyster, is a species of pearl oyster, a saltwater mollusk, a marine bivalve mollusk in the family Pteriidae. This species is common …
How Oysters Make Pearls - American Oceans
Pearl cultivation is the process of growing pearls inside oysters. Pearl farmers start by selecting high-quality oysters and implanting a small nucleus into the oyster’s reproductive organ. This …
How do oysters make pearls? - Natural History Museum
Pearls are made by marine oysters and freshwater mussels as a natural defence against an irritant such as a parasite entering their shell or damage to their fragile body. The oyster or …
Pinctada maxima - Wikipedia
Pinctada maxima is a species of pearl oyster, a marine bivalve mollusk in the family Pteriidae, the pearl oysters. There are two different color varieties: the Gold-lipped oyster and the Silver …