Log In
Little Iron River, Silver City, Ontonagon County, Michigan, USAi
| Regional Level Types | |
|---|---|
| Little Iron River | River |
| Silver City | City |
| Ontonagon County | County |
| Michigan | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
46° 49' 1'' North , 89° 35' 8'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
From "Mineralogy of Michigan":
A silver “vein,” reportedly found by Austin Corser in 1855, was developed as the Scranton, Ontonagon, Superior, and Collins mines. In 1875, a bar of silver was poured weighing 523 ounces and worth $732.20 at that time (Murdoch, 1943, pages 100-104). R. W. Seasor (written communication, 1977) reports, “All of the old reports on the Iron River silver district in Ontonagon County refer to the discoveries as ‘veins’ of silver. Mapping and drilling show that the ‘veins’ are actually the basal portion of the Nonesuch Formation. The early miners misinterpreted the transitional beds between the Copper Harbor Conglomerate and the Nonesuch as veins. The silver discoveries were in an area where the Nonesuch is folded between cross faults, has a slightly higher than normal dip, and has been mineralized with silver to a much higher degree than is average for the rest of the White Pine deposit. The dramatic difference between the Copper Harbor Formation and the Domino bed, the first black shale in the Nonesuch sequence, gave rise to the early thoughts that the 1 to 2 feet of rock in between was a vein filling on a fault zone.”
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Native Silver Formula: Ag |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Silver | 1.AA.05 | Ag |
List of minerals for each chemical element
| Ag | Silver | |
|---|---|---|
| Ag | ⓘ Native Silver | Ag |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Mid-continent DomainDomain
- Mid-continent RiftNarrow Rift
USA
- Michigan
- Keweenaw PeninsulaPeninsula
- Midcontinent RiftGeologic Province
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
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
