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).…