SYDNEY, Australia — The peculiar origin story of pink diamonds, esteemed for their rarity and vibrant hue, has been traced back to an event dating about 1.6 billion years ago. Recent studies indicate that these precious stones emerged out of one of Earth’s oldest continental separations.
Research involving the largest cache of pink diamonds, found primarily in Western Australia’s Argyle mining area, has suggested that the diamonds’ formation is tied to the clash and disintegration of Nuna, the planet’s first supercontinent. Once coalesced, Nuna existed approximately between 1.6 and 1.9 billion years ago, covering a considerable part of present-day Australia.
Due to seismic activities, Nuna began to break apart, causing significant changes to the geography, climate, and more importantly, triggering certain geological processes. It’s speculated that the formation of pink diamonds occurred during this tumultuous period. The ultrahigh-pressure conditions resulting from supercontinental disruptions forced atoms within the diamonds to realign and produce their distinct pink hue.
This discovery was made possible by studying certain deposits in the Argyle region. A comprehensive analysis of the mineral makeup of the area has helped scientists understand the conditions under which these diamonds were formed. Substantial study of Argyle volcano was instrumental in pinpointing Nuna’s breakup as the birth cradle for these precious stones.
Moreover, the ongoing study of the Argyle deposits has begun to delineate a more practical application. It’s hoped that the discovery can offer clues towards uncovering new diamond deposits. As further investigation into these fascinating stones progresses, the Argyle mines continue to offer invaluable insights into Earth’s earliest history while promising potential advancements in our present search for valuable resources.