-
The Mirna Diamond Mine Location: Mirna City just below the
Arctic circle in Yakutia, the Sakha Republic of Eastern Siberia
in north eastern Russia
-
The Mirna Diamond Mine diamond source: Kimberlite volcanic pipes
-
Mining Method: Open pit mining
-
Size of the Mirna Diamond Mine: Measures 525 meters deep and
1.25 km across (1200 meters)
-
This mine is also the world's largest man-made hole
-
The air zone around the Mirna mine is closed for helicopters as
accidents occurred when they were "sucked in" into the massive
hole by downward air flow
-
Geologist Mikhail M. Odintsov is generally credited with
discovering the first diamonds in Yakutia
-
The Mirna Diamond Mine diamond quality: When open a prolific
producer of diamonds
-
Age of Diamonds: 70 million years old
-
Age of the Mirna mine: The first discovery of kimberlite in the
Sakha region occurred in 1954
-
The Mirna kimberlite field was discovered in 1955
-
The Mirna Diamond Mine was opened in 1957
-
The Mirna Diamond Mine has ceased operation since its supply of
diamonds was exhausted.
-
When it was in operation the Mirna mine had an averaged yield of
2 million carats annually.