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Hill-Ledford Mine, Cave-In-Rock Mining Sub-District, Hardin County, Illinois, USAi
| Regional Level Types | |
|---|---|
| Hill-Ledford Mine | Mine |
| Cave-In-Rock Mining Sub-District | Mining Sub-district |
| Hardin County | County |
| Illinois | State |
| USA | Country |
Hill-Ledford Mine, Cave-In-Rock Mining Sub-District, Cave-in-Rock Mining Sub-District, Hardin County, Illinois, USA
Hill-Ledford Mine, Cave-In-Rock Mining Sub-District, Illinois-Kentucky Fluorspar District, USA
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Latitude & Longitude (WGS84):
37° 31' 40'' North , 88° 9' 48'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Cave-in-Rock | 318 (2011) | 6.5km |
| Elizabethtown | 287 (2017) | 15.5km |
| Sturgis | 1,912 (2017) | 16.0km |
| Old Shawneetown | 178 (2017) | 18.9km |
| Rosiclare | 1,082 (2017) | 19.9km |
The Hill-Ledford Mine operated by the Ozark-Mahoning Company from the late 1950’s into the 1970’s (Denny et al., 2013). The mineralization was in an oval collapsed breccia in the Aux Vases Sandstone. It is thought to be formed by dissolution and mineralization within a “feeder Pipe”. The vertical displacement of the breccia is about 75 feet (Brecke, 1962).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Calcite Formula: CaCO3 References: |
| ⓘ Fluorite Formula: CaF2 Habit: Crystals to 0.5m on edge |
| ⓘ Galena Formula: PbS References: |
| ⓘ 'Petroleum' References: |
| ⓘ 'Petroleum var. Bitumen' References: |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS References: |
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena | 2.CD.10 | PbS |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Unclassified | |||
| ⓘ | 'Petroleum var. Bitumen' | - | |
| ⓘ | '' | - | |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Quartz | SiO2 |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Sphalerite | ZnS |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Fluorite | CaF2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Granite-Rhyolite ProvinceMagmatic Province
- Illinois BasinBasin
- Shawnee DomainDomain
USA
- Illinois-Kentucky Fluorspar DistrictMining District
- Illinois
- Hardin County
- Cave-in-Rock Mining Sub-DistrictMining Sub-district
- Hardin County
- Rough Creek GrabenBasin
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
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for access and that you are aware of all safety precautions necessary.
References
Brecke, E. A. (1962) Ore genesis of the Cave-In-Rock Fluorspar District, Hardin County, Illinois. Economic Geology, 57 (4) 499-535 doi:10.2113/gsecongeo.57.4.499
Lillie, Ross C. (1988) Minerals of the: Harris Creek Fluorspar District, Hardin County, Illinois. Rocks & Minerals, 63 (3). 210-226 doi:10.1080/00357529.1988.11761839
Hill-Ledford Mine, Cave-In-Rock Mining Sub-District, Hardin County, Illinois, USA