Deposit

Oak Grove

Oak Grove is a deposit with published resource estimates in Tennessee, recorded in the USGS USMIN rare earth element occurrence database (ver. 4.0, June 2019).

Facts on this page last re-verified Aug 12, 2026 — the oldest verification date among its current claims. How we verify.

Location: Tennessee, United States (36.383, -88.167 approx.)

Commodities: heavy minerals; rare earth elements

Deposit model: monazite-bearing stream placers · unclassified

Geology

The basal member of the McNairy Sand, which is as much as 15 m thick, contains concentrations of heavy minerals that are locally as high as 17 percent (Van Gosen and others (2010))

Published resource estimates

As compiled by USGS USMIN from the cited studies. Resource classes follow the source; "approximate" flags values USMIN reports as approximations. These are not current company reserve statements.

Material	Class	Amount	Grade	Contained	As of	Reference
monazite	Unclassified	174,600,000 t	0.155 percent	271,000 metric tons monazite	Jan 1, 1982	Orris and Grauch (2002), Page 151, Appendix A — Orris, G.J., Grauch, R.I., 2002, Rare earth element mines, deposits, and occurrences: U.S. Geological Survey Open-File Report 02-189, 167 p. http://pubs.usgs.gov/of/2002/of02-189/.

Record imported from USGS USMIN ver. 4.0 (June 2019). Developments after that date appear on facility records, not here; see the methodology.

Sources

U.S. Geological Survey · published Jun 1, 2019 · retrieved Aug 12, 2026 · archive unavailable: Wayback snapshot 20260427015518 of the ScienceBase item exists but the archive service returned 503 on verification 2026-08-12; recheck on a weekly pass