List of Earth MRI focus areas with critical mineral = tantalum

12 focus areas match these criteria.

Focus area Region States Mineral Systems Deposit types Commodities
Southeastern Alaska REE Alaska Alaska Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; phosphate; thorium; uranium; yttrium
Idaho Critical Mineral Placers Northwest Idaho Placer Columbite/tantalite; Garnet; Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon garnet; thorium; yttrium
Blue Butte, Bonus Extension Group, Mica-Beryl Mine, Rock King Prospect, Silver Rocker Group Rocky Mountains Colorado Climax-type Pegmatite NYF yttrium
Brown Derby Rocky Mountains Colorado Porphyry Sn (granite-related) Pegmatite LCT mica
Copper Mountain Rocky Mountains Wyoming Porphyry Sn (granite-related) Greisen; High sulfidation; Pegmatite LCT; Porphyry/skarn copper; gold; silver
Eight Mile Park district Rocky Mountains Colorado Climax-type Pegmatite NYF feldspar; mica; quartz; yttrium
Medicine Bow Mountains Rocky Mountains Colorado; Wyoming Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Meyers Ranch Rocky Mountains Colorado Porphyry Sn (granite-related) Pegmatite LCT feldspar; mica; thorium; uranium
Alabama pegmatite zone Southeast Alabama Porphyry Sn (granite-related) Pegmatite LCT (none)
New Mexico Proterozoic alkaline rocks and pegmatites Southwest New Mexico Magmatic REE Peralkaline syenite/granite/rhyolite/alaskite/pegmatites copper; thorium; uranium; yttrium
Rociada Southwest New Mexico Porphyry Sn (granite-related) Pegmatite LCT (none)
White Picacho Southwest Arizona Porphyry Sn (granite-related) Pegmatite LCT copper; feldspar; gold; lead; mica; molybdenum; silver