Leadwood road cut, St. Francois County, Missouri, USAi
| Regional Level Types | |
|---|---|
| Leadwood road cut | Road Cutting |
| St. Francois County | County |
| Missouri | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 52' 7'' North , 90° 36' 50'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Frankclay | 221 (2017) | 0.8km |
| Leadwood | 1,236 (2017) | 1.8km |
| Wortham | 275 (2017) | 2.7km |
| Terre du Lac | 2,320 (2017) | 4.9km |
| Irondale | 445 (2017) | 7.0km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Mineral Area Gem & Mineral Society | Park Hills, Missouri | 10km |
Outcrops on both sides of the road. Interbedded dolomites and shales of the Davis Formation. Note the large concretion-like “boulders”, which are dolomitized, thrombolite bioherms. The Davis here represents a transgressive offshore or intrashelf basin facies. Mega-ripples are present at the west end of the outcrop on the north side. Saddle dolomite, pyrite, sphalerite and galena crystals found here attest to exposure to mineralizing fluids. Above the microbial thrombolites (boulder beds) is an extensively burrowed horizon that has recently been shown to record one of the earliest examples of extensive predatory activity by animals (trilobites vs. worms).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
6 valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Dolomite Formula: CaMg(CO3)2 |
| ⓘ Galena Formula: PbS |
| ✪ Millerite Formula: NiS |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Sphalerite Formula: ZnS |
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Millerite | 2.CC.20 | NiS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Dolomite | CaMg(CO3)2 |
| O | Oxygen | |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| Mg | Magnesium | |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Millerite | NiS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Ca | Calcium | |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Ni | Nickel | |
| Ni | ⓘ Millerite | NiS |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| 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
- Shawnee DomainDomain
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Leadwood road cut, St. Francois County, Missouri, USA