Moscow: Mining giant ALROSA has uncovered a rare rock containing an astonishing 30,000 diamonds at its Udachny diamond mine in Russia, Mining Global reports. The stone is red and green, measures 30 millimeters and has a concentration one million times higher than normal.

Despite the discovery, the diamonds in the rock are too small to be used as gems and instead have been donated to the Russian Academy of Sciences for research.

After the initial scanning, scientists found the diamonds inside the rock measure just 1 millimeter and are octahedral in shape. The red and green coloring signifies it comes from larger crystals of garnet, olivine and pyroxene. Scientists are excited at the finding as they hope it will shed further light on how diamonds are made.