Deposit

Coosa

Coosa is a graphite deposit in Alabama with published resource estimates, recorded in the USGS USMIN mineral deposit database from the 2022 graphite deposits data release.

Facts on this page last re-verified Aug 13, 2026 — the oldest verification date among its current claims. How we verify.

Location: Alabama, United States (32.912, -86.401 approx.)

Commodities: graphite

Deposit model: 37f - Disseminated flake graphite

Geology

USGS records this site as hosted by quartz-biotite-garnet schist, quartz-graphite schist, quartz-muscovite-biotite-graphite schist of the Higgins Ferry Formation (348 Ma), with disseminated mineralization. (Wilson and others (2015))

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
graphite	Inferred	72,069,000 t	2.56 percent at a 1 percent cut-off	1,845,000 metric tons graphite	Jan 1, 2015	Wilson and others (2015), Page 14-15, Table 14-7 — Wilson, S.E., Redwood, S., Zurowski, G., Hamilton, W., Holloway, A., Mackey, P., Jones, L., Peters, O., 2015, Alabama Graphite Corp., Coosa Graphite Project, Alabama, USA, preliminary economic assessment, NI 43-101 technical report, prepared for, Alabama Graphite Corp. [Filing date November 27, 2015]: AGP Mining Consultants Inc., 267 p., accessed June 12, 2020, at http://www.sedar.com.
graphite	Indicated	71,204,000 t	2.39 percent at a 1 percent cut-off	1,702,000 metric tons graphite	Jan 1, 2015	Wilson and others (2015), Page 14-15, Table 14-6 — Wilson, S.E., Redwood, S., Zurowski, G., Hamilton, W., Holloway, A., Mackey, P., Jones, L., Peters, O., 2015, Alabama Graphite Corp., Coosa Graphite Project, Alabama, USA, preliminary economic assessment, NI 43-101 technical report, prepared for, Alabama Graphite Corp. [Filing date November 27, 2015]: AGP Mining Consultants Inc., 267 p., accessed June 12, 2020, at http://www.sedar.com.

Exploration and site history

Evaluation — NI 43-101 compliant report published, 2013 (Durgin (2013))
Evaluation — NI 43-101 compliant report published, 2013 (Wilson and Redwood (2013))
Exploration — Exploration has consisted of trenching, drilling, sampling and helicopter-borne magnetic, radiometric and time-domain electromagnetic surveys, 2012–2015 (Wilson and others (2015))
Evaluation — NI 43-101 compliant report published, 2012 (Durgin (2012))
Evaluation — NI 43-101 compliant report published, 2015 (Wilson and others (2015))
Evaluation — NI 43-101 compliant report published, 2015 (Wilson and Redwood (2015))

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 Jan 1, 2022 · retrieved Aug 13, 2026 · archive unavailable: archive.org has been unreachable since 2026-08-12, so no Wayback snapshot could be captured for this record; recheck on a weekly pass