113 focus areas match these criteria.
Focus area | Region | States | Mineral Systems | Deposit types | Commodities |
---|---|---|---|---|---|
Central Brooks Range Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
Darby-Hogatza REE | Alaska | Alaska | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Darby-Hogatza Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
Kokrines-Hodzana REE | Alaska | Alaska | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; lead; molybdenum; silver; thorium; uranium; yttrium |
Kokrines-Hodzana Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
Kuskokwim-White Mountains Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
Lost River-Kougarok Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
Northern Alaska Range REE | Alaska | Alaska | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Northern Alaska Range Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
Porcupine River REE | Alaska | Alaska | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; phosphate; thorium; uranium; yttrium |
Porcupine River Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
Southeastern Alaska REE | Alaska | Alaska | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; phosphate; thorium; uranium; yttrium |
Western Alaska Range REE | Alaska | Alaska | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Yukon-Tanana REE | Alaska | Alaska | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Yukon-Tanana Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
Animikie Red Ace Pegmatite | North Central | Wisconsin | Porphyry Sn (granite-related) | Pegmatite LCT | (none) |
Archean gneiss terranes | North Central | Iowa; Michigan; Minnesota; Nebraska; South Dakota; Wisconsin | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Archean gneiss terranes | North Central | Iowa; Michigan; Minnesota; Nebraska; South Dakota; Wisconsin | Porphyry Sn (granite-related) | Pegmatite LCT; Porphyry/skarn | (none) |
Humboldt Granite | North Central | Michigan | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Minnesota Quetico Province | North Central | Minnesota; North Dakota | Porphyry Sn (granite-related) | Pegmatite LCT; Porphyry/skarn | (none) |
Neoarchean Greenstone Belts of Minnesota, North Dakota and South Dakota | North Central | Minnesota; North Dakota; South Dakota | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Neoarchean Greenstone Belts of Minnesota, North Dakota and South Dakota | North Central | Minnesota; North Dakota; South Dakota | Porphyry Sn (granite-related) | Pegmatite LCT | (none) |
Northeast Iowa intrusive complex (NEIIC) | North Central | Iowa; Minnesota; Wisconsin | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Southern Black Hills pegmatites | North Central | South Dakota | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar; mica |
Southern Complex pegmatites | North Central | Michigan | Porphyry Sn (granite-related) | Pegmatite LCT | (none) |
Wausau Syenite Complex (WSC) | North Central | Wisconsin | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; yttrium |
Wolf River Batholith | North Central | Wisconsin | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Brunswick pegmatite field | Northeast | Maine | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar; mica |
Catoctin Formation metavolcanics in Maryland | Northeast | Maryland | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Connecticut pegmatites | Northeast | Connecticut | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar; gold; mica; silver |
Eastern Piedmont Devonian granitoids | Northeast | Maryland | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Grafton Pegmatite District | Northeast | New Hampshire | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar; gold; mica; silver |
Keene Pegmatite District | Northeast | New Hampshire | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar; gold; mica; silver |
Litchfield syenite | Northeast | Maine | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Massachusetts pegmatite | Northeast | Massachusetts | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar; mica |
Oxford County pegmatite field | Northeast | Maine; New Hampshire | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar |
Parker Mountain pegmatite | Northeast | New Hampshire | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar; mica |
Raymond Pegmatite District | Northeast | New Hampshire | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar; mica |
Topsham pegmatite district | Northeast | Maine | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar; gems; gold; mica; silver |
White Mountains pegmatites | Northeast | Maine; New Hampshire | Climax-type | Pegmatite NYF | feldspar; mica; yttrium |
Adel Mountain Volcanics | Northwest | Montana | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; thorium; uranium; yttrium |
Bearpaw Mountains-Eagle Buttes | Northwest | Montana | Magmatic REE | Carbonatite; Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; lead; magnetite; phosphorus; silver; thorium; uranium; vermiculite; yttrium |
Butte pegmatite belt | Northwest | Montana | Climax-type | Pegmatite NYF | copper; lead; silver; yttrium |
Castle stock | Northwest | Montana | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Clearwater County beryllium | Northwest | Idaho | Climax-type | Pegmatite NYF | yttrium |
Crazy Mountain Volcanics | Northwest | Montana | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; iron; lead; silver; thorium; uranium; yttrium |
Cretaceous heavy-mineral placer sandstones (black sandstones) | Northwest; North Central; Rocky Mountains | Montana; North Dakota; South Dakota; Wyoming | Placer | Columbite/tantalite; Gold; Ilmenite/rutile/leucoxene; Monazite/xenotime; Uraninite, autunite-group minerals; Wolframite/scheelite; Zircon | gold; iron; thorium; uranium; yttrium |
Golden Horn batholith | Northwest | Washington | Climax-type | Pegmatite NYF | yttrium |
Hall Mountain mineral district | Northwest | Idaho | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Highwood Mountains | Northwest | Montana | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Idaho Critical Mineral Placers | Northwest | Idaho | Placer | Columbite/tantalite; Garnet; Ilmenite/rutile/leucoxene; Monazite/xenotime; Zircon | garnet; thorium; yttrium |
Latah County beryllium | Northwest | Idaho | Reduced intrusion-related | Pegmatite LCT | (none) |
Little Belt Mountains | Northwest | Montana | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Midnite | Northwest | Washington | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Moccasin Mountains | Northwest | Montana | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
NW Idaho-NE Washington beryllium | Northwest | Idaho; Washington | Porphyry Sn (granite-related) | Pegmatite LCT | (none) |
Philips Lake | Northwest | Washington | Porphyry Sn (granite-related) | Pegmatite LCT | (none) |
Roaring River beryllium | Northwest | Idaho | Climax-type | Pegmatite NYF | yttrium |
Sawtooth batholith | Northwest | Idaho | Climax-type | Pegmatite NYF | lead; molybdenum; silver; yttrium |
Spokane Mountain | Northwest | Washington | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Sweet Grass Hills | Northwest | Montana | Magmatic REE | Carbonatite; Fluorspar; Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
Washington Heavy Mineral Placers | Northwest | Washington | Placer | Columbite/tantalite; Gold; Ilmenite/rutile/leucoxene; Monazite/xenotime; PGE; Zircon | 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 |
Centennial Cone Prospect | Rocky Mountains | Colorado | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; feldspar; mica; thorium; uranium; yttrium |
Central Laramie Range | Rocky Mountains | Wyoming | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Climax Mica Lode, Lower South Mine, Rose Dawn Mine, Star Girl Mine, Upper South Mine | Rocky Mountains | Colorado | Climax-type | Pegmatite NYF | yttrium |
Copper Mountain | Rocky Mountains | Wyoming | Porphyry Sn (granite-related) | Greisen; High sulfidation; Pegmatite LCT; Porphyry/skarn | copper; gold; silver |
Crystal Mountain pegmatites | Rocky Mountains | Colorado | Climax-type | Greisen; Pegmatite NYF | feldspar; mica; molybdenum; uranium; yttrium |
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 |
Pikes Peak, St. Peter’s Dome (Proterozoic) | Rocky Mountains | Colorado | Climax-type | Greisen-S-R beryllium; Pegmatite NYF | gold; lead; molybdenum; silver; thorium; uranium; yttrium |
Sierra Madre | Rocky Mountains | Colorado; Wyoming | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; vermiculite; yttrium |
Sweetwater Arch | Rocky Mountains | Wyoming | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Twin Cedars, Big Bertha, South Platte pegmatites | Rocky Mountains | Colorado | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; feldspar; quartz; thorium; uranium; yttrium |
Wet Mountains | Rocky Mountains | Colorado | Magmatic REE | Carbonatite; Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; phosphorus; thorium; vermiculite; uranium; yttrium |
Winfield Peak-Antero | Rocky Mountains | Colorado | Climax-type | Pegmatite NYF; Porphyry molybdenum | gold; molybdenum; silver; yttrium |
Granite Mountain syenite | South Central | Arkansas | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Kansas Lamproite | South Central | Kansas | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; mica; thorium; uranium; yttrium |
Alabama pegmatite zone | Southeast | Alabama | Porphyry Sn (granite-related) | Pegmatite LCT | (none) |
Kings Mountain pegmatite district | Southeast | North Carolina; South Carolina | Porphyry Sn (granite-related) | Pegmatite LCT | (none) |
Little Friar Mountain pegmatite | Southeast | Virginia | Porphyry Sn (granite-related) | Pegmatite LCT | (none) |
North Carolina pegmatite zone | Southeast | North Carolina; Tennessee | Porphyry Sn (granite-related) | Pegmatite LCT | (none) |
Spruce Pine Area | Southeast | North Carolina | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar; high purity quartz; mica |
Virginia pegmatite zone-Amelia County | Southeast | Virginia | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar; high purity quartz; mica |
Zirconia Pegmatite Mining District | Southeast | North Carolina; South Carolina | Porphyry Sn (granite-related) | Pegmatite LCT | feldspar |
New Mexico Tertiary alkaline rocks and REE veins | Southwest | New Mexico | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Arizona-New Mexico Cretaceous placers | Southwest | Arizona; Colorado; New Mexico | Placer | Columbite/tantalite; Ilmenite/rutile/leucoxene; Monazite/xenotime; Uraninite, autunite-group minerals; Zircon | thorium; uranium; yttrium |
Birch Creek | Southwest | California | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT | copper; gold; lead; silver |
Cal Blue Mine | Southwest | California | Porphyry Sn (granite-related) | Pegmatite LCT | (none) |
Cave Peak | Southwest | Texas | Climax-type | Porphyry molybdenum | copper; molybdenum |
Central Texas pegmatites | Southwest | Texas | Climax-type | Pegmatite NYF | feldspar; yttrium |
Gallinas Mountains Mining District | Southwest | New Mexico | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; iron; lead; silver; thorium; uranium |
Granite Peak district | Southwest | Utah | Climax-type | Fluorspar; Greisen; Pegmatite NYF | lead; molybdenum; silver; yttrium |
Kaiparowits placer | Southwest | Utah | Placer | Columbite/tantalite; Ilmenite/rutile/leucoxene; Monazite/xenotime; Uraninite, autunite-group minerals; Wolframite/scheelite; Zircon | thorium; uranium; yttrium |
La Paz | Southwest | Arizona | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
McDermitt Caldera | Southwest | Nevada; Oregon | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
New Mexico Cambrian alkaline rocks and REE veins | Southwest | New Mexico | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; iron; lead; molybdenum; silver; thorium; uranium; yttrium |
New Mexico Proterozoic alkaline rocks and pegmatites | Southwest | New Mexico | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Pajarito Mountain | Southwest | New Mexico | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; iron; thorium; uranium; yttrium |
Peninsular Ranges pegmatites | Southwest | California | Porphyry Sn (granite-related) | Pegmatite LCT | boron |
Petaca placers | Southwest | New Mexico | Placer | Columbite/tantalite; Monazite/xenotime; Zircon | thorium; yttrium |
Rociada | Southwest | New Mexico | Porphyry Sn (granite-related) | Pegmatite LCT | (none) |
Round Top | Southwest | Texas | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Texas Cretaceous intrusions | Southwest | Texas | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Texas-New Mexico alkaline belt | Southwest | New Mexico; Texas | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; iron; lead; silver; thorium; uranium |
Texas-New Mexico alkaline belt | Southwest | New Mexico; Texas | Climax-type | Porphyry molybdenum | molybdenum |
Tintic-Deep Creek belt | Southwest | Nevada; Utah | Climax-type | Distal disseminated silver-gold; Fluorspar; Greisen; Greisen-S-R beryllium; Lithocap alunite, Lithocap kaolinite; Pegmatite NYF; Polymetallic sulfide S-R-V-IS; Volcanogenic beryllium; Volcanogenic uranium | cadmium; copper; gold; halloysite clay; iron; lead; molybdenum; silver; uranium; zeolite |
Toiyabe Peaks | Southwest | Nevada | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
Trout Creek district | Southwest | Utah | Climax-type | Greisen; Pegmatite NYF; Polymetallic sulfide S-R-V-IS | gold; lead; molybdenum; silver; yttrium |
White Picacho | Southwest | Arizona | Porphyry Sn (granite-related) | Pegmatite LCT | copper; feldspar; gold; lead; mica; molybdenum; silver |
Wind Mountain (Cornudas Mountains) | Southwest | New Mexico | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |