Holmes prospect, Ashland County, Wisconsin, USAi
| Regional Level Types | |
|---|---|
| Holmes prospect | Prospect (Lost) |
| Ashland County | County |
| Wisconsin | State |
| USA | Country |
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Latitude & Longitude (WGS84):
46° 19' 57'' North , 90° 36' 34'' West
Latitude & Longitude (decimal):
Type:
Prospect (Lost) - last checked 2023
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Mellen | 700 (2017) | 4.0km |
| Marengo | 111 (2017) | 18.8km |
| Birch Hill | 293 (2017) | 21.3km |
| Glidden | 507 (2017) | 22.1km |
| Iron Belt | 173 (2017) | 23.1km |
A lost locality, described in Horace Stevens' 1911 volume X of "A Manual of the Copper Industry of the World" as being "1 mile north of Bad River". There is no town or township of Bad River. The Bad River flows for a number of miles through rocks of Archean and Proterozoic age. Stevens describes a series of 3 deposits, one of which being worked by several shafts. They are said to be "fissure veins in greenstone, diorite and slate". There was reportedly an extensive gossan. This could be mineralization related to an earlier Proterozoic massive sulfide mineralization.
Cox et al. describes the Holmes prospect as occupying the southwestern corner of Section 34, Town 45, Range 2 west. The site is privately owned.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ 'Limonite' |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Native Copper Formula: Cu |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Native Copper | Cu |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Mid-continent DomainDomain
- Mid-continent RiftNarrow Rift
USA
- Midcontinent RiftGeologic Province
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