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Bronson Mine, Durango, Dubuque County, Iowa, USAi
| Regional Level Types | |
|---|---|
| Bronson Mine | Mine |
| Durango | Village |
| Dubuque County | Area |
| Iowa | State |
| USA | Country |
Bronson Mine, Durango, Upper Mississippi Valley Zinc-Lead District, USA
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Latitude & Longitude (WGS84):
42° 33' 5'' North , 90° 46' 8'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Asbury | 5,291 (2017) | 4.3km |
| Sageville | 103 (2017) | 4.9km |
| Sherrill | 176 (2017) | 6.0km |
| Rickardsville | 181 (2017) | 10.1km |
| Dubuque | 58,799 (2018) | 10.3km |
Other/historical names associated with this locality:
Bonson
A former Pb-Zn occurrence/mine located 1.1 km (0.7 mile) SSE of Durango, near the confluence of the Marquoketa River and the Little Marquoketa River, NW of Dubuque.
Deposit: Shaft dug in 1800's to 90' depth to mine lead, deepened in 1910 to 165 foot depth to mine sphalerite; this is the only deep shaft testing lower beds in the Durango area (northern Dubuque subdistrict). Iron recovered from limonite from same ore trend a half mile west of main Bonson shaft, 1896-1897. Cadastral location: NW 1/4 NE 1/4 Sec. 6, T. 89 N., R. 2. E. ; info.src : cobb
Geology: Pyritic ore (sphalerite) is in Decorah formation following e-striking near-vertical joints as fracture fillings.
Rock formation(s): Decorah Formation
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
6 valid minerals.
Detailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Dolomite Formula: CaMg(CO3)2 |
| ⓘ Galena Formula: PbS |
| ⓘ 'Limonite' |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Quartz | SiO2 |
| Mg | Magnesium | |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10082025 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Great Plains DomainDomain
- Yavapai TerraneVolcanic Arc
USA
- Upper Mississippi Valley Zinc-Lead DistrictMining District
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