Xenotime

Yields

→ neodymium · praseodymium · dysprosium · terbium

Data status

Trace — bulk sample only

Class

phosphate

As general mineralogy, not an Osmond figure, xenotime is a phosphate of yttrium and the heavy rare earths, including dysprosium and terbium — a different rare-earth suite from the light-rare-earth minerals, which is why it is identified separately in an assemblage rather than folded into a single rare-earth line.

What Osmond has reported at Orión is small and bounded. On a mass-balance basis dated 19 February 2026, xenotime was quantified only in the bulk channel samples, at 0.03–0.04%; in the drill holes it is reported as negligible. Those are figures for the channel samples, set against total heavy minerals of 29.4–32.8% in the same samples, with up to roughly 40% estimated in the AV-01bis interval.

The state of the record is the point here rather than the grade. Xenotime has no concentrate grade and no recovery figure, its bulk-sample percentage is a mass-balance estimate calculated from oxide assays rather than a directly measured mineral content, and the drill holes — the wider of the two sample sets — record it as negligible.