| Regional Level Types | |
|---|---|
| Cedar Creek Mining District | Mining District |
| Mineral County | County |
| Montana | State |
| USA | Country |



| ⓘ'Allanite Group' Formula:(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| ⓘAnkerite ? Formula:Ca(Fe2+,Mg)(CO3)2 |
| ⓘAnnabergite Formula:Ni3(AsO4)2 · 8H2O References: |
| ⓘ'Biotite' Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘCalcite Formula:CaCO3 |
| ⓘDolomite Formula:CaMg(CO3)2 |
| ⓘDolomite var. Iron-bearing Dolomite Formula:Ca(Mg,Fe)(CO3)2 |
| ⓘ'Fluocerite' |
| ⓘFluorite Formula:CaF2 |
| ⓘGersdorffite Formula:NiAsS |
| ⓘGoethite Formula:Fe3+O(OH) |
| ⓘGold Formula:Au Localities: Reported from at least25 localities in this region. |
| ⓘ'Limonite' References: |
| ⓘMagnetite Formula:Fe2+Fe3+2O4 |
| ⓘMillerite Formula:NiS |
| ⓘMuscovite Formula:KAl2(AlSi3O10)(OH)2 |
| ⓘParisite-(Ce) Formula:CaCe2(CO3)3F2 Description: Crystals to 24cm. |
| ⓘPentahydrite Formula:MgSO4 · 5H2O References: |
| ⓘPyrite Formula:FeS2 |
| ⓘQuartz Formula:SiO2 |
| ⓘRutile Formula:TiO2 |
| ⓘSilver Formula:Ag |
| ⓘSulphur Formula:S8 |
| ⓘXenotime-(Y) Formula:Y(PO4) |
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| ⓘ | Silver | 1.AA.05 | Ag |
| ⓘ | Sulphur | 1.CC.05 | S8 |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Millerite | 2.CC.20 | NiS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Gersdorffite | 2.EB.25 | NiAsS |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Ankerite ? | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| ⓘ | var. Iron-bearing Dolomite | 5.AB.10 | Ca(Mg,Fe)(CO3)2 |
| ⓘ | Parisite-(Ce) | 5.BD.20b | CaCe2(CO3)3F2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Pentahydrite | 7.CB.20 | MgSO4 · 5H2O |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Xenotime-(Y) | 8.AD.35 | Y(PO4) |
| ⓘ | Annabergite | 8.CE.40 | Ni3(AsO4)2 · 8H2O |
| Group 9 - Silicates | |||
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| Unclassified | |||
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Fluocerite' | - | |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Allanite Group' | - | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| H | Hydrogen | |
|---|---|---|
| H | ⓘAnnabergite | Ni3(AsO4)2 · 8H2O |
| H | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘGoethite | Fe3+O(OH) |
| H | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘPentahydrite | MgSO4 · 5H2O |
| H | ⓘAllanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| C | Carbon | |
| C | ⓘAnkerite | Ca(Fe2+,Mg)(CO3)2 |
| C | ⓘCalcite | CaCO3 |
| C | ⓘDolomite | CaMg(CO3)2 |
| C | ⓘParisite-(Ce) | CaCe2(CO3)3F2 |
| C | ⓘDolomite var.Iron-bearing Dolomite | Ca(Mg,Fe)(CO3)2 |
| O | Oxygen | |
| O | ⓘAnkerite | Ca(Fe2+,Mg)(CO3)2 |
| O | ⓘAnnabergite | Ni3(AsO4)2 · 8H2O |
| O | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘCalcite | CaCO3 |
| O | ⓘDolomite | CaMg(CO3)2 |
| O | ⓘGoethite | Fe3+O(OH) |
| O | ⓘMagnetite | Fe2+Fe23+O4 |
| O | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘParisite-(Ce) | CaCe2(CO3)3F2 |
| O | ⓘPentahydrite | MgSO4 · 5H2O |
| O | ⓘQuartz | SiO2 |
| O | ⓘRutile | TiO2 |
| O | ⓘXenotime-(Y) | Y(PO4) |
| O | ⓘDolomite var.Iron-bearing Dolomite | Ca(Mg,Fe)(CO3)2 |
| O | ⓘAllanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| F | Fluorine | |
| F | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| F | ⓘFluorite | CaF2 |
| F | ⓘParisite-(Ce) | CaCe2(CO3)3F2 |
| Mg | Magnesium | |
| Mg | ⓘAnkerite | Ca(Fe2+,Mg)(CO3)2 |
| Mg | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | ⓘDolomite | CaMg(CO3)2 |
| Mg | ⓘPentahydrite | MgSO4 · 5H2O |
| Mg | ⓘDolomite var.Iron-bearing Dolomite | Ca(Mg,Fe)(CO3)2 |
| Al | Aluminium | |
| Al | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘQuartz | SiO2 |
| Si | ⓘAllanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| P | Phosphorus | |
| P | ⓘXenotime-(Y) | Y(PO4) |
| S | Sulfur | |
| S | ⓘGersdorffite | NiAsS |
| S | ⓘMillerite | NiS |
| S | ⓘPentahydrite | MgSO4 · 5H2O |
| S | ⓘPyrite | FeS2 |
| S | ⓘSulphur | S8 |
| K | Potassium | |
| K | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘAnkerite | Ca(Fe2+,Mg)(CO3)2 |
| Ca | ⓘCalcite | CaCO3 |
| Ca | ⓘDolomite | CaMg(CO3)2 |
| Ca | ⓘFluorite | CaF2 |
| Ca | ⓘParisite-(Ce) | CaCe2(CO3)3F2 |
| Ca | ⓘDolomite var.Iron-bearing Dolomite | Ca(Mg,Fe)(CO3)2 |
| Ti | Titanium | |
| Ti | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | ⓘRutile | TiO2 |
| Fe | Iron | |
| Fe | ⓘAnkerite | Ca(Fe2+,Mg)(CO3)2 |
| Fe | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘGoethite | Fe3+O(OH) |
| Fe | ⓘMagnetite | Fe2+Fe23+O4 |
| Fe | ⓘPyrite | FeS2 |
| Fe | ⓘDolomite var.Iron-bearing Dolomite | Ca(Mg,Fe)(CO3)2 |
| Ni | Nickel | |
| Ni | ⓘAnnabergite | Ni3(AsO4)2 · 8H2O |
| Ni | ⓘGersdorffite | NiAsS |
| Ni | ⓘMillerite | NiS |
| As | Arsenic | |
| As | ⓘAnnabergite | Ni3(AsO4)2 · 8H2O |
| As | ⓘGersdorffite | NiAsS |
| Y | Yttrium | |
| Y | ⓘXenotime-(Y) | Y(PO4) |
| Ag | Silver | |
| Ag | ⓘSilver | Ag |
| Ce | Cerium | |
| Ce | ⓘParisite-(Ce) | CaCe2(CO3)3F2 |
| Au | Gold | |
| Au | ⓘGold | Au |