Bear Lodge Mining District, Crook County, Wyoming, USAi
| Regional Level Types | |
|---|---|
| Bear Lodge Mining District | Mining District |
| Crook County | County |
| Wyoming | State |
| USA | Country |
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Latitude & Longitude (WGS84):
44° North , 104° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~62km
Type:
Köppen climate type:
10 miles N of Sundance (T. 51-52 N., R. 63 W.), includes Petersen deposits (secs. 15 & 22, T. 52 N., R. 63 W.), Hutchinson prospect, and Royal Purple Nos. 1 & 2 claims (sec. 30, T. 52 N., R. 63 W. & sec. 25, T. 52 N., R. 64 W.); siliceous fluorite veins and limestone replacement associated with andesite sills intruded into limestone.
The REE-thorium deposits and nearby gold mineralization of the southern Bear Lodge Mountains are hosted by middle Tertiary alkaline intrusions. These intrusions are Eocene (38.3−50 million years old) and consist primarily of phonolite and trachyte (Staatz, 1983). They intruded Paleozoic and Mesozoic sedimentary rocks, forming a dome about 13 km (8 mi) long by 10 km (6 mi) wide. Breccia bodies are associated with the igneous intrusions, such as a heterolithic diatreme breccia near Bull Hill. Rare earth elements–bearing carbonatite dikes intruded near the Bull Hill diatreme; the dikes are surrounded by a large zone of low-grade REE mineralization that fills thin, narrow stockwork fractures within the large alkaline intrusions. These thorium and REE deposits crop out throughout an area of about 16 km2 (6 mi2) (Staatz, 1983). The igneous core of the dome is microfractured and altered, thereby forming disseminated deposits. The REE and thorium mineralization precipitated within thin fractures as coatings and veinlets as much as 6 mm thick. The coatings and veinlets consist predominantly of iron and manganese oxide minerals, along with potassium feldspar and quartz. The REE and thorium are incorporated into the minerals monazite, thorite, and brockite.
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Standard Detailed Gallery Strunz Chemical ElementsCommodity List
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Mineral list contains entries from the region specified including sub-localities25 valid minerals.
Rock Types Recorded
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Rock list contains entries from the region specified including sub-localities
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Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ 'Ancylite' |
| ⓘ Ancylite-(Ce) Formula: CeSr(CO3)2(OH) · H2O |
| ⓘ 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) |
| ⓘ Baryte Formula: BaSO4 |
| ⓘ 'Bastnäsite' Formula: (Ce/Nd/Y/REE)(CO3)F |
| ⓘ Brockite Formula: (Ca,Th,Ce)PO4 · H2O References: |
| ⓘ Burbankite Formula: (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 |
| ⓘ 'Calcioancylite' |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Carbocernaite Formula: (Ca,Na)(Sr,Ce,Ba)(CO3)2 |
| ⓘ Cerianite-(Ce) Formula: (Ce4+,Th)O2 |
| ⓘ Fluorapatite Formula: Ca5(PO4)3F |
| ⓘ Fluorite Formula: CaF2 |
| ⓘ Galena Formula: PbS |
| ⓘ Goethite Formula: Fe3+O(OH) References: Frank KarastiIdentified by Frank Karasti: Visual Identification, Optical Analysis |
| ⓘ Gypsum Formula: CaSO4 · 2H2O References: |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Jarosite Formula: KFe3+3(SO4)2(OH)6 |
| ⓘ 'K Feldspar' |
| ⓘ 'Limonite' |
| ⓘ Marcasite Formula: FeS2 |
| ⓘ 'Monazite Group' Formula: REE(PO4) |
| ⓘ Native Gold Formula: Au Localities: Description: Native |
| ⓘ Opal Formula: SiO2 · nH2O References: Frank KarastiIdentified by Frank Karasti: Visual Identification, Optical Analysis |
| ⓘ Opal var. Hyalite Formula: SiO2 · nH2O References: Frank KarastiIdentified by Frank Karasti: Visual Identification, Optical Analysis |
| ⓘ 'Parisite' Formula: Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| ⓘ Pseudorutile Formula: Fe2Ti3O9 |
| ⓘ 'Psilomelane' |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrolusite Formula: Mn4+O2 |
| ⓘ Quartz Formula: SiO2 Localities: |
| ⓘ 'Rhabdophane' |
| ⓘ Rutile Formula: TiO2 |
| ⓘ Siderite Formula: FeCO3 |
| ⓘ Strontianite Formula: SrCO3 |
| ⓘ 'Synchysite' Formula: Ca(Ce/Nd/Y/REE)(CO3)2F |
| ⓘ Thorite Formula: Th(SiO4) References: |
| ⓘ 'Wad' |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Pseudorutile | 4.CB.25 | Fe2Ti3O9 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
| ⓘ | var. Hyalite | 4.DA.10 | SiO2 · nH2O |
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| ⓘ | Cerianite-(Ce) | 4.DL.05 | (Ce4+,Th)O2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Strontianite | 5.AB.15 | SrCO3 |
| ⓘ | Carbocernaite | 5.AB.50 | (Ca,Na)(Sr,Ce,Ba)(CO3)2 |
| ⓘ | Burbankite | 5.AC.30 | (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 |
| ⓘ | Ancylite-(Ce) | 5.DC.05 | CeSr(CO3)2(OH) · H2O |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Jarosite | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
| ⓘ | Brockite | 8.CJ.45 | (Ca,Th,Ce)PO4 · H2O |
| Group 9 - Silicates | |||
| ⓘ | Thorite | 9.AD.30 | Th(SiO4) |
| Unclassified | |||
| ⓘ | 'Bastnäsite' | - | (Ce/Nd/Y/REE)(CO3)F |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Monazite Group' | - | REE(PO4) |
| ⓘ | 'Psilomelane' | - | |
| ⓘ | 'Rhabdophane' | - | |
| ⓘ | 'Wad' | - | |
| ⓘ | 'Parisite' | - | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| ⓘ | 'Synchysite' | - | Ca(Ce/Nd/Y/REE)(CO3)2F |
| ⓘ | 'Ancylite' | - | |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'Calcioancylite' | - | |
| ⓘ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Ancylite-(Ce) | CeSr(CO3)2(OH) · H2O |
| H | ⓘ Brockite | (Ca,Th,Ce)PO4 · H2O |
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| H | ⓘ Opal | SiO2 · nH2O |
| H | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| H | ⓘ Opal var. Hyalite | SiO2 · nH2O |
| C | Carbon | |
| C | ⓘ Ancylite-(Ce) | CeSr(CO3)2(OH) · H2O |
| C | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| C | ⓘ Burbankite | (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Carbocernaite | (Ca,Na)(Sr,Ce,Ba)(CO3)2 |
| C | ⓘ Siderite | FeCO3 |
| C | ⓘ Strontianite | SrCO3 |
| C | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| C | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| O | Oxygen | |
| O | ⓘ Ancylite-(Ce) | CeSr(CO3)2(OH) · H2O |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| O | ⓘ Brockite | (Ca,Th,Ce)PO4 · H2O |
| O | ⓘ Burbankite | (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Carbocernaite | (Ca,Na)(Sr,Ce,Ba)(CO3)2 |
| O | ⓘ Cerianite-(Ce) | (Ce4+,Th)O2 |
| O | ⓘ Fluorapatite | Ca5(PO4)3F |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | ⓘ Monazite Group | REE(PO4) |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Pseudorutile | Fe2Ti3O9 |
| O | ⓘ Pyrolusite | Mn4+O2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Strontianite | SrCO3 |
| O | ⓘ Thorite | Th(SiO4) |
| O | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| O | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| O | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| O | ⓘ Opal var. Hyalite | SiO2 · nH2O |
| F | Fluorine | |
| F | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| F | ⓘ Fluorapatite | Ca5(PO4)3F |
| F | ⓘ Fluorite | CaF2 |
| F | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| F | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| F | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Na | Sodium | |
| Na | ⓘ Burbankite | (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 |
| Na | ⓘ Carbocernaite | (Ca,Na)(Sr,Ce,Ba)(CO3)2 |
| Si | Silicon | |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Thorite | Th(SiO4) |
| Si | ⓘ Opal var. Hyalite | SiO2 · nH2O |
| P | Phosphorus | |
| P | ⓘ Brockite | (Ca,Th,Ce)PO4 · H2O |
| P | ⓘ Fluorapatite | Ca5(PO4)3F |
| P | ⓘ Monazite Group | REE(PO4) |
| P | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Galena | PbS |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Pyrite | FeS2 |
| Cl | Chlorine | |
| Cl | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| K | Potassium | |
| K | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Ca | Calcium | |
| Ca | ⓘ Brockite | (Ca,Th,Ce)PO4 · H2O |
| Ca | ⓘ Burbankite | (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Carbocernaite | (Ca,Na)(Sr,Ce,Ba)(CO3)2 |
| Ca | ⓘ Fluorapatite | Ca5(PO4)3F |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Ca | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| Ca | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Ti | Titanium | |
| Ti | ⓘ Pseudorutile | Fe2Ti3O9 |
| Ti | ⓘ Rutile | TiO2 |
| Mn | Manganese | |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Fe | Iron | |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Pseudorutile | Fe2Ti3O9 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Siderite | FeCO3 |
| Sr | Strontium | |
| Sr | ⓘ Ancylite-(Ce) | CeSr(CO3)2(OH) · H2O |
| Sr | ⓘ Burbankite | (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 |
| Sr | ⓘ Carbocernaite | (Ca,Na)(Sr,Ce,Ba)(CO3)2 |
| Sr | ⓘ Strontianite | SrCO3 |
| Y | Yttrium | |
| Y | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| Y | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Ba | ⓘ Burbankite | (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 |
| Ba | ⓘ Carbocernaite | (Ca,Na)(Sr,Ce,Ba)(CO3)2 |
| La | Lanthanum | |
| La | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Ce | Cerium | |
| Ce | ⓘ Ancylite-(Ce) | CeSr(CO3)2(OH) · H2O |
| Ce | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| Ce | ⓘ Brockite | (Ca,Th,Ce)PO4 · H2O |
| Ce | ⓘ Burbankite | (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 |
| Ce | ⓘ Carbocernaite | (Ca,Na)(Sr,Ce,Ba)(CO3)2 |
| Ce | ⓘ Cerianite-(Ce) | (Ce4+,Th)O2 |
| Ce | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Ce | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| Nd | Neodymium | |
| Nd | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| Nd | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Nd | ⓘ Synchysite | Ca(Ce/Nd/Y/REE)(CO3)2F |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Th | Thorium | |
| Th | ⓘ Brockite | (Ca,Th,Ce)PO4 · H2O |
| Th | ⓘ Cerianite-(Ce) | (Ce4+,Th)O2 |
| Th | ⓘ Thorite | Th(SiO4) |
Localities in this Region
- Wyoming
- Crook County
- Wyoming
- Crook County
- Bear Lodge Mining District
- Crook County
Other Regions, Features and Areas containing this locality
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References
Bock Mine, Bear Lodge Mining District, Crook County, Wyoming, USA