Popigai Crater Impact Diamond | Arctic Siberia, Russia Phenakite faceted stones 4 billion year old ultramafic

4 billion year old ultramafic layered intrusion

Measurements: 4 x 3

leaving the center intact

Mex-Tex fluorite specimens like this are a rare find

Popigai Crater Impact Diamond | Arctic Siberia, Russia Phenakite faceted stones 4 billion year old ultramaficPopigai Crater Impact Diamond. This otherworldly gem is a gift from space. Millions of years ago, a meteorite struck the Earth in Northern Siberia, Russia, above the Arctic Circle. This ancient celestial event created a massive crater surrounded by diamonds, the Popigai Crater, known as Russia's Crater of Diamonds. Most Popigai Crater impact diamonds are very small, 0. 5 to 2mm. This impact diamond is a micro mount, but at 3. 5 x 3mm it's large for a