A critique of using epitaxial criterion to discriminate between protogenetic and syngenetic mineral inclusions in diamond.

ABSTRACT: Distinguishing syngenetic from protogenetic inclusions in natural diamonds is one of the most debated issues in diamond research. Were the minerals that now reside in inclusions in diamonds born before the diamond that hosts them (protogenesis)? Or did they grow simultaneously and by the same reaction (syngenesis)? Once previously published data on periclase [(Mg,Fe)O] and magnesiochromite (MgCr₂O₄) inclusions in diamond have been re-analysed, we show that the main arguments reported so far to support syngenesis between diamond and its mineral inclusions, definitely failed. Hence: (a) the epitaxial relationships between diamond and its mineral inclusion should no longer be used to support syngenesis, because only detecting an epitaxy does not tell us which was the nuc

SUBMITTER: Bruno M 

PROVIDER: S-EPMC11018738 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature