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Devils Head Pegmatite Mining District, Douglas County, Colorado, USAi
| Regional Level Types | |
|---|---|
| Devils Head Pegmatite Mining District | Mining District |
| Douglas County | County |
| Colorado | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° North , 104° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~42km
Type:
Köppen climate type:
Devils Head is a prominent peak in the Rampart Range. It is easily reached from Sedalia on State Highway 85 via U.S. Highway 67 (Jarre Canyon Road) and Rampart Range road; the distance from Sedalia is 21.5 mi. It can also be reached from Colorado Springs by way of U.S. Highway 24 to Woodland Park, then along Rampart Range Road. This locality has at times been under claim by local mineral clubs.
In 1880s a pocket 50 feet long, 4 to 15 feet wide and 4 feet thick produced many crystals of topaz, microcline, cassiterite and fluorite.
2017 Update: Log Jumper trail head digs have been claimed. The claims are in popular dig sites that are within ½ mile of Rampart Range Road, on the west side starting from the trail head post. Please note that these digs are also no longer open to the public and there are now mining hazards in the area.
In 1880s a pocket 50 feet long, 4 to 15 feet wide and 4 feet thick produced many crystals of topaz, microcline, cassiterite and fluorite.
2017 Update: Log Jumper trail head digs have been claimed. The claims are in popular dig sites that are within ½ mile of Rampart Range Road, on the west side starting from the trail head post. Please note that these digs are also no longer open to the public and there are now mining hazards in the area.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities22 valid minerals.
Rock Types Recorded
Rock list contains entries from the region specified including sub-localities
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 3 - Halides | |||
|---|---|---|---|
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| ⓘ | var. Yttrofluorite | 3.AB.25 | (Ca1-xYx)F2+x where 0.05 < x < 0.3 |
| ⓘ | var. Yttrocerite | 3.AB.25 | (Ca,Y,Ce)F2+x |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | 'Pyrochlore Group' | 4.00. | A2Nb2(O,OH)6Z |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | var. Martite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz var. Amethyst | 4.DA.05 | SiO2 |
| ⓘ | var. Citrine | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | var. Smoky Quartz | 4.DA.05 | SiO2 |
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| ⓘ | Samarskite-(Y) | 4.DB.25 | YFe3+Nb2O8 |
| ⓘ | Euxenite-(Y) | 4.DG.05 | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| ⓘ | Hollandite | 4.DK.05a | Ba(Mn4+6Mn3+2)O16 |
| ⓘ | Manganite | 4.FD.15 | Mn3+O(OH) |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Fergusonite-(Y) | 7.GA.05 | YNbO4 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Xenotime-(Y) | 8.AD.35 | Y(PO4) |
| Group 9 - Silicates | |||
| ⓘ | Fayalite | 9.AC.05 | Fe2+2(SiO4) |
| ⓘ | Thorite | 9.AD.30 | Th(SiO4) |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | var. Cyrtolite | 9.AD.30 | Zr[(SiO4),(OH)4] |
| ⓘ | Topaz | 9.AF.35 | Al2(SiO4)(F,OH)2 |
| ⓘ | Gadolinite-(Y) | 9.AJ.20 | Y2Fe2+Be2Si2O10 |
| ⓘ | Bertrandite | 9.BD.05 | Be4(Si2O7)(OH)2 |
| ⓘ | Allanite-(Ce) | 9.BG.05b | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| ⓘ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | Polylithionite | 9.EC.20 | KLi2Al(Si4O10)(F,OH)2 |
| ⓘ | Microcline var. Amazonite | 9.FA.30 | K(AlSi3O8) |
| ⓘ | 9.FA.30 | K(AlSi3O8) | |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | var. Cleavelandite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Monazite Group' | - | REE(PO4) |
| ⓘ | 'Feldspar Group var. Perthite' | - | |
| ⓘ | 'Parisite' | - | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
| ⓘ | 'Fergusonite' | - | |
| ⓘ | 'Allanite Group' | - | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| H | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Manganite | Mn3+O(OH) |
| H | ⓘ Polylithionite | KLi2Al(Si4O10)(F,OH)2 |
| H | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
| H | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| H | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| H | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| Li | Lithium | |
| Li | ⓘ Polylithionite | KLi2Al(Si4O10)(F,OH)2 |
| Be | Beryllium | |
| Be | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| Be | ⓘ Gadolinite-(Y) | Y2Fe2+Be2Si2O10 |
| C | Carbon | |
| C | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| O | ⓘ Microcline var. Amazonite | K(AlSi3O8) |
| O | ⓘ Quartz var. Amethyst | SiO2 |
| O | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Quartz var. Citrine | SiO2 |
| O | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| O | ⓘ Fayalite | Fe22+(SiO4) |
| O | ⓘ Fergusonite-(Y) | YNbO4 |
| O | ⓘ Gadolinite-(Y) | Y2Fe2+Be2Si2O10 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Hollandite | Ba(Mn64+Mn23+)O16 |
| O | ⓘ Manganite | Mn3+O(OH) |
| O | ⓘ Hematite var. Martite | Fe2O3 |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Monazite Group | REE(PO4) |
| O | ⓘ Polylithionite | KLi2Al(Si4O10)(F,OH)2 |
| O | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
| O | ⓘ Pyrolusite | Mn4+O2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Samarskite-(Y) | YFe3+Nb2O8 |
| O | ⓘ Quartz var. Smoky Quartz | SiO2 |
| O | ⓘ Thorite | Th(SiO4) |
| O | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| O | ⓘ Xenotime-(Y) | Y(PO4) |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| O | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| O | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| 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 | ⓘ Polylithionite | KLi2Al(Si4O10)(F,OH)2 |
| F | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| F | ⓘ Fluorite var. Yttrofluorite | (Ca1-xYx)F2+x where 0.05 < x < 0.3 |
| F | ⓘ Fluorite var. Yttrocerite | (Ca,Y,Ce)F2+x |
| F | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Microcline var. Amazonite | K(AlSi3O8) |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Polylithionite | KLi2Al(Si4O10)(F,OH)2 |
| Al | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| Al | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Microcline var. Amazonite | K(AlSi3O8) |
| Si | ⓘ Quartz var. Amethyst | SiO2 |
| Si | ⓘ Bertrandite | Be4(Si2O7)(OH)2 |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Beryl | Be3Al2(Si6O18) |
| Si | ⓘ Quartz var. Citrine | SiO2 |
| Si | ⓘ Fayalite | Fe22+(SiO4) |
| Si | ⓘ Gadolinite-(Y) | Y2Fe2+Be2Si2O10 |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Polylithionite | KLi2Al(Si4O10)(F,OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Smoky Quartz | SiO2 |
| Si | ⓘ Thorite | Th(SiO4) |
| Si | ⓘ Topaz | Al2(SiO4)(F,OH)2 |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| Si | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Si | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| P | Phosphorus | |
| P | ⓘ Monazite Group | REE(PO4) |
| P | ⓘ Xenotime-(Y) | Y(PO4) |
| K | Potassium | |
| K | ⓘ Microcline var. Amazonite | K(AlSi3O8) |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘ Microcline | K(AlSi3O8) |
| K | ⓘ Polylithionite | KLi2Al(Si4O10)(F,OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Fluorite var. Yttrofluorite | (Ca1-xYx)F2+x where 0.05 < x < 0.3 |
| Ca | ⓘ Fluorite var. Yttrocerite | (Ca,Y,Ce)F2+x |
| Ca | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ti | Titanium | |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Mn | Manganese | |
| Mn | ⓘ Hollandite | Ba(Mn64+Mn23+)O16 |
| Mn | ⓘ Manganite | Mn3+O(OH) |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Fe | Iron | |
| Fe | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Fayalite | Fe22+(SiO4) |
| Fe | ⓘ Gadolinite-(Y) | Y2Fe2+Be2Si2O10 |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Hematite var. Martite | Fe2O3 |
| Fe | ⓘ Samarskite-(Y) | YFe3+Nb2O8 |
| Y | Yttrium | |
| Y | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Y | ⓘ Fergusonite-(Y) | YNbO4 |
| Y | ⓘ Gadolinite-(Y) | Y2Fe2+Be2Si2O10 |
| Y | ⓘ Samarskite-(Y) | YFe3+Nb2O8 |
| Y | ⓘ Xenotime-(Y) | Y(PO4) |
| Y | ⓘ Fluorite var. Yttrofluorite | (Ca1-xYx)F2+x where 0.05 < x < 0.3 |
| Y | ⓘ Fluorite var. Yttrocerite | (Ca,Y,Ce)F2+x |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Zr | ⓘ Zircon var. Cyrtolite | Zr[(SiO4),(OH)4] |
| Nb | Niobium | |
| Nb | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Nb | ⓘ Fergusonite-(Y) | YNbO4 |
| Nb | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
| Nb | ⓘ Samarskite-(Y) | YFe3+Nb2O8 |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
| Ba | Barium | |
| Ba | ⓘ Hollandite | Ba(Mn64+Mn23+)O16 |
| La | Lanthanum | |
| La | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Ce | Cerium | |
| Ce | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Ce | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Ce | ⓘ Fluorite var. Yttrocerite | (Ca,Y,Ce)F2+x |
| Ce | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Nd | Neodymium | |
| Nd | ⓘ Parisite | Ca(Ce/La/Nd/REE)2(CO3)3F2 |
| Ta | Tantalum | |
| Ta | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Th | Thorium | |
| Th | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Th | ⓘ Thorite | Th(SiO4) |
| U | Uranium | |
| U | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Localities in this Region
- Colorado
- Douglas County
- Devils Head Pegmatite Mining District
- Baldwin Mine
- C & S
- California Mine
- Colorado Mineral Society
- Cramer Mine (Magnuson Quarry)
- Cramer No. 2 Quarry (Snowdrift Quarry)
- Denver Mine
- Devils Head
- Devils Head Copper
- Devils Head Mine (Devils Head pegmatite)
- Devils Head Occurrence (C.M.S.)
- Fern Creek
- Little Anna
- Little Eagle Occurrence
- Little Eddie Mine
- Devils Head Pegmatite Mining District
- Douglas County
- Colorado
- Douglas County
- Devils Head Pegmatite Mining District
- Little Joe
- Lone Pine Feldspar Quarry (Claim: Lone Pine; MS 20867)
- Long Hollow
- Lost Dutchman pegmatite
- Miller lode (Miller Mine; Miller No. 1 Lode)
- Pine Nook
- Princeton group
- Rusty Pick Occurrence
- Skeleton No. 2 pegmatite
- Spielman prospect (Spielman pegmatite)
- Three Musketeers Mine
- Unknown Fluorine - Fluorite (MRDS - 10239627)
- Unknown Fluorine - Fluorite (MRDS - 10288251)
- Unnamed pegmatite
- Watson Park Mine (Watson Park pegmatite)
- Devils Head Pegmatite Mining District
- Douglas County
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Denver BasinBasin
- Great Plains DomainDomain
- Yavapai TerraneVolcanic Arc
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References
Devils Head Pegmatite Mining District, Douglas County, Colorado, USA