(Of a rock formation, region, etc.) producing or yielding diamonds.
- Numerous geological series of auriferous and diamantiferous areas would also be worth studying in detail.
- Last December, two diamantiferous kimberlites were discovered in the Otish Mountain region.
- The marine prospection is made by boats equipped with pumps in order to sample the diamantiferous gravel.
Late 19th century: from French diamantifère, from diamant 'diamond' + -fère 'producing'.
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