Last Chance Mine (Shoup Mn Mine; Baxter Denison Mine; Black Diamond), Iron Mine Draw (Iron Mine Canyon), Clints Well, Long Valley Mining District, Coconino County, Arizona, USAi
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Latitude & Longitude (WGS84):
34° 34' 15'' North , 111° 19' 54'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Whispering Pines | 148 (2011) | 22.6km |
| Strawberry | 961 (2011) | 23.4km |
| Pine | 1,963 (2011) | 23.6km |
| East Verde Estates | 170 (2017) | 30.4km |
| Mesa del Caballo | 765 (2011) | 31.9km |
Other/historical names associated with this locality:
Bosley Mining Co.; McCloskey group; Denison Manganese; J. Reed Denison; Linesba; Shafer Manganese;
A former Mn occurrence/group of 5 claims/mine located in the center sec. 30, T14N, R10E, G&SRM, 2.5 km (1.6 miles) NW of Clints Well. Also has components termed patented claims MS 4291 & unpatented claims MS 4383, 4466 & 4467. Owned by George W. Grimes, L.A. Hough, and J.J. Chiles, of Pine, Arizona. The USGS MRDS database stated accuracy for this locality is 100 meters.
Mineralization is deposits of Mn ore that occur near the surface as replacement bodies in decomposed limestone and sandstone and in breccias of the same forms. The area is 1½ miles long and a mile wide. The local limestone and sandstone are decomposed several feet below the surface and are stained in shades of yellow, red, brown, and black from iron and manganese oxides.
The manganese oxides occur in nodules and masses in the decomposed rock, replace the limestone and sandstone in varying degrees, and form the cementing substance of breccias. Nodules and masses of manganese oxides composed largely of psilomelane are scattered over the surface and are found in decomposed rock to a depth of a few feet. Some of the masses are 2 feet (60 cm) diameter and weigh hundreds of pounds. The psilomelane has a peculiar structure. Most specimens collected are vesicular and ropy in appearance, but when broken open are found to be composed of columnar rods 1 or 2 inches (2.5 to 5 cm) long deposited in concentric crusts. Brown iron oxide has been deposited in the interstices of this ore.
Below the bunches and masses of the purer psilomelane ore found near the surface are masses of manganese and iron oxides which partly replace limestone and sandstone along the bedding planes. In some places the manganese and iron oxides are mixed, but generally the manganese oxides are in streaks and masses encased by iron oxides. Local rocks include Permian sedimentary rocks.
Workings include surface & underground openings comprised of 10 or more shallow shafts and open cuts and short tunnels (1928). The deepest shaft is 25 feet (1918).
Mineralization is deposits of Mn ore that occur near the surface as replacement bodies in decomposed limestone and sandstone and in breccias of the same forms. The area is 1½ miles long and a mile wide. The local limestone and sandstone are decomposed several feet below the surface and are stained in shades of yellow, red, brown, and black from iron and manganese oxides.
The manganese oxides occur in nodules and masses in the decomposed rock, replace the limestone and sandstone in varying degrees, and form the cementing substance of breccias. Nodules and masses of manganese oxides composed largely of psilomelane are scattered over the surface and are found in decomposed rock to a depth of a few feet. Some of the masses are 2 feet (60 cm) diameter and weigh hundreds of pounds. The psilomelane has a peculiar structure. Most specimens collected are vesicular and ropy in appearance, but when broken open are found to be composed of columnar rods 1 or 2 inches (2.5 to 5 cm) long deposited in concentric crusts. Brown iron oxide has been deposited in the interstices of this ore.
Below the bunches and masses of the purer psilomelane ore found near the surface are masses of manganese and iron oxides which partly replace limestone and sandstone along the bedding planes. In some places the manganese and iron oxides are mixed, but generally the manganese oxides are in streaks and masses encased by iron oxides. Local rocks include Permian sedimentary rocks.
Workings include surface & underground openings comprised of 10 or more shallow shafts and open cuts and short tunnels (1928). The deepest shaft is 25 feet (1918).
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This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities1 valid mineral.
Rock Types Recorded
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List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| Unclassified | |||
| ⓘ | 'Psilomelane' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Pyrolusite | Mn4+O2 |
| Mn | Manganese | |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
Other Databases
| Link to USGS MRDS: | 10210135 |
|---|
Localities in this Region
- Arizona
- Coconino County
- Long Valley Mining District
- Clints Well
- Iron Mine Draw (Iron Mine Canyon)
- Last Chance Mine (Shoup Mn Mine; Baxter Denison Mine; Black Diamond)
- Iron Mine Draw (Iron Mine Canyon)
- Clints Well
- Long Valley Mining District
- Coconino County
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Colorado PlateauShield
- Great Plains DomainDomain
USA
- Colorado PlateauPlateau
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