'It's a nacreous concretion formed around a foreign body, like a grain of sand'
a pearl
GEMS & JEWELS: Its a nacreous concretion formed around a foreign body, like a grain of sand
It's a nacreous concretion formed around a foreign body, like a grain of sand
It's a nacreous concretion formed around a foreign body, like a grain of sand
GEMS & JEWELS
a pearl
GEMS & JEWELS