Jacob's Geode Mine, Hamilton, Hancock County, Illinois, USAi
| Regional Level Types | |
|---|---|
| Jacob's Geode Mine | Mine |
| Hamilton | Town |
| Hancock County | County |
| Illinois | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 22' 42'' North , 91° 21' 17'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Hamilton | 2,853 (2017) | 2.4km |
| Keokuk | 10,609 (2017) | 3.3km |
| Warsaw | 1,551 (2017) | 7.1km |
| Alexandria | 153 (2017) | 8.8km |
| Elvaston | 161 (2017) | 9.1km |
Mindat Locality ID:
188554
Long-form identifier:
mindat:1:2:188554:8
GUID (UUID V4):
2fcc6f22-3223-4304-bcca-164002e69f49
Geode mine operated by Gary Jacobs.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
19 valid minerals.
Detailed Mineral List:
| β Ankerite Formula: Ca(Fe2+,Mg)(CO3)2 References: |
| β Baryte Formula: BaSO4 |
| β Calcite Formula: CaCO3 |
| β Celestine Formula: SrSO4 |
| β Dolomite Formula: CaMg(CO3)2 |
| β 'Feldspar Group' |
| β Goethite Formula: Ξ±-Fe3+O(OH) |
| β Gypsum Formula: CaSO4 · 2H2O References: |
| β Gypsum var. Selenite Formula: CaSO4 · 2H2O References: |
| β Halite Formula: NaCl |
| β Hollandite Formula: Ba(Mn4+6Mn3+2)O16 |
| β Kaolinite Formula: Al2(Si2O5)(OH)4 |
| β 'Limonite' References: https://www.mindat.org/photo-1352113.htmlIdentified by Noah Horwitz: Visual Identification |
| β Marcasite Formula: FeS2 References: |
| β 'Petroleum' |
| β 'Petroleum var. Bitumen' |
| β Pyrite Formula: FeS2 |
| β Quartz Formula: SiO2 |
| β Quartz var. Chalcedony Formula: SiO2 |
| β Rhodochrosite Formula: MnCO3 |
| β Rhodochrosite var. Ponite Formula: (Mn,Fe)CO3 |
| β Rutile ? Formula: TiO2 |
| β Siderite Formula: FeCO3 |
| β Sphalerite Formula: ZnS References: |
| β Sylvite Formula: KCl |
| β 'Xenotime' ? |
| β Zircon ? Formula: Zr(SiO4) |
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Sphalerite | 2.CB.05a | ZnS |
| β | Pyrite | 2.EB.05a | FeS2 |
| β | Marcasite | 2.EB.10a | FeS2 |
| Group 3 - Halides | |||
| β | Sylvite | 3.AA.20 | KCl |
| β | Halite | 3.AA.20 | NaCl |
| Group 4 - Oxides and Hydroxides | |||
| β | Goethite | 4.00. | Ξ±-Fe3+O(OH) |
| β | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| β | 4.DA.05 | SiO2 | |
| β | Rutile ? | 4.DB.05 | TiO2 |
| β | Hollandite | 4.DK.05a | Ba(Mn4+6Mn3+2)O16 |
| Group 5 - Nitrates and Carbonates | |||
| β | Siderite | 5.AB.05 | FeCO3 |
| β | Rhodochrosite | 5.AB.05 | MnCO3 |
| β | var. Ponite | 5.AB.05 | (Mn,Fe)CO3 |
| β | Calcite | 5.AB.05 | CaCO3 |
| β | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| β | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Baryte | 7.AD.35 | BaSO4 |
| β | Celestine | 7.AD.35 | SrSO4 |
| β | Gypsum | 7.CD.40 | CaSO4 Β· 2H2O |
| β | var. Selenite | 7.CD.40 | CaSO4 Β· 2H2O |
| Group 9 - Silicates | |||
| β | Zircon ? | 9.AD.30 | Zr(SiO4) |
| β | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| Unclassified | |||
| β | 'Limonite' | - | |
| β | 'Feldspar Group' | - | |
| β | 'Xenotime' ? | - | |
| β | 'Petroleum var. Bitumen' | - | |
| β | '' | - | |
List of minerals for each chemical element
Mindat Articles
Micro-mineralogy of a single Keokuk geode; how complex can it get? by Kevin ConroyOther Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Illinois BasinBasin
- Mazatzal DomainDomain
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References
Jacob's Geode Mine, Hamilton, Hancock County, Illinois, USA