Brockman

Brockman (Western Australia)

Deposit type: Magmatic, Alkalic igneous

REE minerals: bastnäsite, xenotime, euxenite

Ore minerals: Columbite, pyrochlore, cassiterite, sphalerite, zircon, (Ga)

Gangue minerals:

Host rock types: rhyolite tuff, peralkaline granite

Average grade: 0.09% REO, 0.124% Y2O3

Status: Potential resource

Company: West Coast Holdings and Greater Pacific Investments (1988)

Resource estimates: 9.0 Mt @ 0.15% Y2O3, 0.12% HREE, 1.3% Zr

4.29 Mt @ 0.123% Y2O3, 0.0355% REO, 0.440% Nb2O5, 1.040% ZrO2

9.3 Mt @ 0.215% REO

18 km SE of Hall's Creek in the East Kimberley.

References

1. https://en.wikipedia.org

2. https://books.google.cl/books?id=jPskAQAAIAAJ&pg=RA4-PA13&lpg=RA4-PA13&dq=Green+Cove+Springs+Mine+monazite&source=bl&ots=8xH_PV9MoG&sig=MkXPfqzQ6OM4zmU2OWc-eHL2-GQ&hl=ru&sa=X&ved=0ahUKEwj6-bG1mfbMAhUDE5AKHYGfCWsQ6AEIKDAD#v=onepage&q&f=false

3. http://mrdata.usgs.gov/ree/show-ree.php?rec_id=163

@ Ph.D. Natalia Petrovskaya

June, 2016

nataliapetrovsky@gmail.com