Further Evidence of a High Percentage of Deep-sourced, Low Nitrogen Diamonds With Ultra-high Pressure Mineral Inclusions, a Known Association With Large High-value Gems. Sequoia Kimberlite, NT
Highlights Diamonds retrieved by caustic fusion of drill core from the Sequoia kimberlite show a relatively abundant presence of low nitrogen diamonds, some of which contain deep, high-pressure mineral inclusions. Recent research globally, by academia, demonstrates that most of the world’s larger high-priced diamonds are nitrogen-free (Type II) and are deep-sourced (>>400 km). This study…