| Locality | Mineral(s) |
|---|
| Mayflower Mine, Baldy Mountain Mining District, Beaverhead County, Montana, USA | โ Descloizite |
| Vanadinite mine, Baldy Mountain Mining District, Beaverhead County, Montana, USA | โ Vanadinite |
| Mordenite occurrence, Beaverhead River canyon, Dillon Mining District (Carter Creek Mining District; Frying Pan Basin Mining District), Beaverhead County, Montana, USA | โ Calcite, โ Goethite, โ Heulandite Subgroup, โ Mordenite, โ Quartz |
| Lemhi Pass, Lemhi Pass Mining District, Beaverhead County, Montana, USA | โ Forsterite |
| Log Cabin Lode, Quartz Hill Mining District (Vipond Mining District), Beaverhead County, Montana, USA | โ Baryte, โ Galena |
| Big Horn County, Montana, USA | โ Baryte |
| Bighorn River, Hardin, Big Horn County, Montana, USA | โ Agate, โ Chalcedony, โ Quartz |
| Dryhead Creek, Pryor Mountains, Big Horn County, Montana, USA | โ Agate, โ Chalcedony, โ Quartz |
| Natrolite occurrence, Bearpaw Mining District (Bear Paw Mining District), Blaine County, Montana, USA | โ Natrolite |
| Keystone Mine, Cascade County, Montana, USA | โ Vanadinite |
| Unnamed pegmatites, Monarch area, Cascade County, Montana, USA | โ Beryl, โ Feldspar Group, โ Schorl |
| Hard Scrabble Mine, Fergus County, Montana, USA | โ Roscoelite |
| Lewistown area, Fergus County, Montana, USA | โ Mukhinite |
| Golden Jack Prospect (Jack Lee Mine; Golden Jack Mining Company Property), Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District), Fergus County, Montana, USA | โ Calcite, โ Chalcopyrite, โ Fluorite, โ Pyrite, โ Quartz, โ Sylvanite |
| Judith Peak, Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District), Fergus County, Montana, USA | โ Quartz |
| Maginnis Mine (Oro Cache Mine), Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District), Fergus County, Montana, USA | โ Calaverite, โ Fluorite, โ Galena, โ Roscoelite, โ Sylvanite |
| West Armell's Creek Occurrence (West Armells Creek Iron; West Armells Creek Bog Iron), Fergus County, Montana, USA | โ Aegirine, โ Orthoclase |
| Elk Creek corundum deposit (Montana Mine; Gallatin deposit; Flying D), Gallatin County, Montana, USA | โ Biotite, โ Plagioclase, โ Rutile |
| Bozeman Corundum Co. Mine, Gallatin Gateway, Gallatin County, Montana, USA | โ Biotite |
| Pohndorf Mine (Pondorff Mine), Toll Mountain, Boulder Batholith, Jefferson County, Montana, USA | โ Allanite Group, โ Brookite, โ Milky Quartz, โ Schorl |
| Morning Glory Mine, Mount Thompson, Cataract Mining District (Comet Mining District; Basin Mining District), Jefferson County, Montana, USA | โ Proustite |
| PC Mine (P.C. Crystal Mine; Penn placer), Cataract Mining District (Comet Mining District; Basin Mining District), Jefferson County, Montana, USA | โ Smoky Quartz |
| Montana Tunnels Mine (Part of Corbin Copper Claims), Colorado Mining District (Prickly Pear Mining District; Corbin Mining District), Jefferson County, Montana, USA | โ Baryte, โ Gold, โ Rhodochrosite |
| Toll Mountain campground area, Toll Mountain Occurrence, Little Pipestone Mining District, Jefferson County, Montana, USA | โ Albite, โ Epidote, โ Goethite, โ Microcline, โ Quartz, โ Smoky Quartz |
| Niki Mine (Nikki Mine; Lonnie Stevens Mine), Pipestone Mining District, Jefferson County, Montana, USA | โ Molybdenite |
| Block P Mine, Hughesville, Barker Mining District, Judith Basin County, Montana, USA | โ Baryte, โ Calcite, โ Chalcopyrite, โ Galena, โ Quartz, โ Rhodochrosite, โ Sphalerite, โ Tetrahedrite Subgroup |
| Sir Walter Scott Mine, Judith Basin County, Montana, USA | โ Azurite, โ Calcite, โ Cerussite, โ Fluorite, โ Malachite, โ Quartz, โ Smithsonite, โ Vanadinite |
| Silver Coin Mine, Blue Cloud Mining District, Lewis and Clark County, Montana, USA | โ Cerussite, โ Mottramite |
| Colorado Gulch, Boulder Mountains Area, Lewis and Clark County, Montana, USA | โ Garnet Group, โ Magnetite |
| Craig road cuts, Lewis and Clark County, Montana, USA | โ Amethyst, โ Calcite, โ Laumontite, โ Mesolite, โ Quartz, โ Stilbite Subgroup |
| Eldorado Bar deposit (Eldorado Strip Mine), Eldorado Bar, East Helena, Lewis and Clark County, Montana, USA | โ Almandine, โ Corundum |
| Spring Hill skarn, Helena area, Helena Mining District (Spring Hill Mining District), Lewis and Clark County, Montana, USA | โ Calcite, โ Clintonite, โ Spinel, โ Vesuvianite |
| Crazy Sphinx Mine (Dry Gulch; Crazy Sphinx claim), Helena, Helena Mining District (Spring Hill Mining District), Lewis and Clark County, Montana, USA | โ Clinochlore, โ Clintonite, โ Diopside, โ Elbaite, โ Epidote, โ Grossular-Hibschite Series, โ Meionite, โ Muscovite, โ Phlogopite, โ Plagioclase, โ Stilbite Subgroup |
| Missouri River placers, Helena Mining District (Spring Hill Mining District), Lewis and Clark County, Montana, USA | โ Corundum, โ Gold, โ Sapphire |
| Bald Butte Mine (Knifeblade Mine), Marysville Mining District, Lewis and Clark County, Montana, USA | โ Gold, โ Stibnite |
| Drumlummon Mine (Marysville Mine; Drumlin Tailings), Marysville Mining District, Lewis and Clark County, Montana, USA | โ Andradite, โ Cerussite, โ Fluorite, โ Galena, โ Malachite, โ Powellite, โ Scheelite, โ Silver, โ Sphalerite |
| Korizek Mine, Missouri River, Lewis and Clark County, Montana, USA | โ Baryte, โ Cerussite, โ Chalcopyrite, โ Chrysocolla, โ Galena, โ Malachite, โ Mottramite, โ Pyrite |
| Elizabeth Mine, Sevenmile-Scratchgravel Mining District, Lewis and Clark County, Montana, USA | โ Cerussite |
| Green Meadow Drive, Scratchgravel Hills, Sevenmile-Scratchgravel Mining District, Lewis and Clark County, Montana, USA | โ Calcite, โ Vesuvianite |
| Dearborn River stilbite occurrence, South Fork Dearborn River, Lewis and Clark County, Montana, USA | โ Stilbite Subgroup |
| Spokane Bar (American Gem Corp.; Spokane Bar Sapphire Mine), Lewis and Clark County, Montana, USA | โ Almandine, โ Gold, โ Topaz |
| Wolf Creek Mine, Wolf Creek Mining District, Lewis and Clark County, Montana, USA | โ Azurite, โ Baryte, โ Chalcopyrite, โ Malachite |
| East Butte, Liberty County, Montana, USA | โ Fluorite, โ Gold, โ Narsarsukite |
| Halfbreed Creek, Sweet Grass Hills, Liberty County, Montana, USA | โ Alunite, โ Epidote, โ Fluorapatite |
| Malvina claim (Tootsie Creek prospect), Tootsie Creek Deposits, Sweet Grass Hills, Liberty County, Montana, USA | โ Magnetite, โ Pyrite, โ Quartz |
| Racetrack area, Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District), Madison County, Montana, USA | โ Almandine |
| Charcoal Creek (Multi Metals Mine), Madison County, Montana, USA | โ Albite, โ Chabazite, โ Chloritoid, โ Diopside, โ Epidote, Hornblende, โ Serpentine Subgroup, โ Titanite |
| Unnamed Kyanite Deposit (MRDS - 10246044), Cherry Creek Mining District, Madison County, Montana, USA | โ Almandine, โ Anthophyllite, โ Cummingtonite, โ Kyanite, โ Pyrite, โ Staurolite |
| Fain Mine, Madison County, Montana, USA | โ Actinolite, โ Andradite, โ Epidote, โ Limonite, โ Magnetite |
| Yellowstone Mine, Gravelly Range, Madison County, Montana, USA | โ Calcite, โ Dolomite, โ Manganese Dendrites, โ Manganese Oxides, โ Quartz |
| Hinch Creek dike, Madison County, Montana, USA | โ Anthophyllite |
| Madison River, Madison County, Montana, USA | โ Biotite, โ Fluorapatite, โ Muscovite |
| Boss Tweed Mine, Mineral Hill Mining District (Pony Mining District), Madison County, Montana, USA | โ Powellite |
| Potosi Mining District, Madison County, Montana, USA | โ Miargyrite, โ Tetrahedrite Subgroup, โ Tungstite |
| Stone Creek pegmatite, Ruby Range, Madison County, Montana, USA | โ Fluorapatite, โ Rose Quartz |
| Wisconsin Creek pegmatite, Sheridan Mining District (Mill Creek Mining District; Wisconsin Mining District), Madison County, Montana, USA | โ Feldspar Group, โ Magnetite, โ Quartz |
| Silver Star Chromite, Silver Star Mining District, Madison County, Montana, USA | โ Magnesiochromite, โ Serpentine Subgroup |
| Grand View Mine, Goodrich Gulch, Tidal Wave Mining District, Madison County, Montana, USA | โ Wulfenite |
| McCone County, Montana, USA | โ Baryte, โ Calcite |
| Blue Bell Mine (Leonard Mine), Copper Cliff Mining District, Missoula County, Montana, USA | โ Famatinite |
| Four V's Claims (4 V's Mining Claim), Lolo Pass, Missoula County, Montana, USA | โ Quartz, โ Smoky Quartz |
| Granite Creek, Lolo Pass, Missoula County, Montana, USA | โ Quartz, โ Smoky Quartz |
| Birebach Mine, Park County, Montana, USA | โ Calcite |
| Crystal Cross Mountain, Park County, Montana, USA | โ Almandine, โ Staurolite |
| Francis Property (Francis Mine), Park County, Montana, USA | โ Calcite |
| Haymond School dike, Park County, Montana, USA | โ Heulandite Subgroup, โ Laumontite, โ Stilbite Subgroup |
| Killoin Mine, Park County, Montana, USA | โ Calcite |
| Unnamed natrolite occurrence, Livingston, Park County, Montana, USA | โ Natrolite |
| New World Project (Daisy Mine; Little Daisy; Tredennick; Morning Star; Glengarry; Homestake Breccia Deposit; Homestake; Carlton; McLaren Gold Company; McLaren Deposit; Lula Mine), New World Mining District (Cooke Mining District), Park County, Montana, USA | โ Galena, โ Gold, โ Pyrite, โ Quartz, โ Siderite |
| Wade Calcite Deposit (Wade Mine; Gibbons Ranch), Park County, Montana, USA | โ Calcite, โ Stilbite Subgroup |
| Pat's Gulch, Powell County, Montana, USA | โ Andradite, โ Epidote, โ Magnetite, โ Powellite |
| Silver Reef Mine, Powell County, Montana, USA | โ Bindheimite, โ Quartz |
| Curlew Mine, Curlew Mining District, Ravalli County, Montana, USA | โ Fluorite, โ Sphalerite |
| Hughes Creek placers, Hughes Creek Mining District (Alta Mining District), Ravalli County, Montana, USA | โ Cassiterite, โ Wood Tin |
| Dark Star group (Dark Star claim; Sheep Creek Adit No. 1; Sheep Creek Adit No. 2), Alta, Mineral Point Mining District, Ravalli County, Montana, USA | โ Chalcopyrite, โ Columbite-(Fe), โ Fluorapatite, โ Hydrobiotite, โ Molybdenite, โ Pyrite, โ Pyrrhotite |
| Pyrites (White Cloud Mine), Ravalli County, Montana, USA | โ Pyrite |
| Mace Prospect (Long Prospect), Rye Creek Mining District, Ravalli County, Montana, USA | โ Columbite-(Fe) |
| Rye Creek pegmatite, Rye Creek Mining District, Ravalli County, Montana, USA | โ Samarskite-(Y) |
| Trapper Peak, Ravalli County, Montana, USA | โ Autunite |
| Yellowstone River, Richland County, Montana, USA | โ Agate, โ Chalcedony, โ Quartz |
| Rosebud County, Montana, USA | โ Baryte, โ Calcite, โ Gypsum |
| Big Porcupine Creek, Rosebud County, Montana, USA | โ Agate, โ Chalcedony, โ Jasper, โ Petrified Wood, โ Quartz |
| Unnamed coal deposit, Colstrip, Rosebud County, Montana, USA | โ Pyrite |
| Rosebud Creek, Rosebud County, Montana, USA | โ Agate, โ Chalcedony, โ Jasper, โ Petrified Wood, โ Quartz |
| Yellowstone River, Rosebud County, Montana, USA | โ Agate, โ Chalcedony, โ Jasper, โ Petrified Wood, โ Quartz |
| Unnamed As occurrence [1], Paradise, Sanders County, Montana, USA | โ Arsenopyrite, โ Quartz |
| Antimony Mines (Eureka and Ellis; Barto; Babbit; Coeur D'Alene; Interstate; Stibnite Hill), Prospect Creek District, Sanders County, Montana, USA | โ Kermesite |
| Sheridan County, Montana, USA | โ Baryte, โ Calcite, โ Pyrite |
| Gold Butte, Sweetgrass Hills, Gold Butte Mining District, Toole County, Montana, USA | โ Gold |
| Myers, Treasure County, Montana, USA | โ Calcite |
| Yellowstone River, Treasure County, Montana, USA | โ Agate, โ Chalcedony, โ Quartz |
| Valley County, Montana, USA | โ Baryte, โ Calcite |
| Wibaux County, Montana, USA | โ Gypsum |
| Beaver Creek, Wibaux County, Montana, USA | โ Petrified Wood, โ Quartz |
| St Philips, Wibaux County, Montana, USA | โ Opal, โ Petrified Wood, โ Quartz |
| Wibaux, Wibaux County, Montana, USA | โ Baryte |
| Yellowstone County, Montana, USA | โ Calcite, โ Gypsum |
| Yellowstone River, Yellowstone County, Montana, USA | โ Agate, โ Chalcedony, โ Quartz |
These are possibly similar items as determined by title/reference text matching only.
