The Kollur Mine was a series of gravel-clay pits on the south bank of the Krishna River in the state of Andhra Pradesh, India. It has produced many large diamonds, known as Golconda diamonds, several of which are or have been a part of crown jewels of various empires.
The Kollur Mine was a series of gravel-clay pits on the south bank of the Krishna River in the state of Andhra Pradesh, India. It has produced many large diamonds, known as Golconda diamonds, several of which are or have been a part of crown jewels of various empires.
Source: Wikipedia "Kollur Mine" · CC BY-SA 4.0
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