Fine large shells of a dead white are supplied by Singapore. Common varieties come irom Bombay and Valgraiso, from the latter place with jet black edges. South Sea pearl-shells are common ...

To reduce irritation, the mollusk coats the intruder with the same secretion it uses for shell ... Black pearls from the South Pacific also come in a range of colors. China's Cultured Pearl ...

Throughout much of recorded history, a natural pearl necklace ... pearls, white saltwater pearls from the coasts of Panama and Venezuela competed with pearls from Bahrain, and black saltwater ...

Among the millions of bivalve molluscs in the Museum's collections, one specimen stands out: a large oyster shell, donated to the Museum in 1886 and containing a peculiar pearl. Rather than a ...

One of the most significant benefits of manufacturing completely in-house is the collaborative synergy between the designers ...

We've heard a lot of OnePlus 13 leaks recently. Now, a new photo may finally give us a good look at its design.

which are made by technicians at pearl farms. Natural pearls are usually white or cream in color, while cultured pearls come ...

The first Razer Viper Mini introduced an ultra-lightweight gaming mouse to the masses. Find out what makes the Signature ...

Apatite (calcium triphosphate): This mineral makes up the bones and teeth of vertebrates and the shells of inarticulate brachiopods. Calcium phosphate looks chalky when new, but can darken to black ...

The Murphy Lab has been turned loose on a limited run of two super-collectible acoustics inspired by the SJ-200 that Page ...