Stella Maris No. 1 Mine (Drew Springs Mine; Black Widow Mine), Sheridan Mountains, Cimarron Mining District (Salt Well Mining District), Cimarron & Sheridan Mountains, Pima County, Arizona, USAi
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Latitude & Longitude (WGS84):
32° 25' 55'' North , 112° 7' 0'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Anegam | 151 (2011) | 10.4km |
| Santa Rosa | 628 (2011) | 14.0km |
| Kaka | 141 (2011) | 20.6km |
| Maish Vaya | 158 (2011) | 29.5km |
| Wahak Hotrontk | 114 (2011) | 36.2km |
A former small surface and underground Mn mine located in North-central sec. 36, T.11S., R.2E. (protracted), in the Sheridan Mountains, 9 miles NW of Gu Achi. Discovered 1955. Owned by De Silva & Allinio.
Mineralization is a replacement deposit with sinuous ore masses including psilomelane and wad with pyrolusite, minor manganite, and calcite stringers in depth, in irregular replacements in folded and partly marblized Paleozoic limestone along a bedding plane fault above a rhyolitic porphyry intrusion. The ore zone is from surface to 45.72 meters depth to bottom and a thickness of 3.66 meters. Ore control was localization along a bedding plane fault and often extends into tension fractures in the walls. Post-ore faulting is evident. Psilomelane grades to pyrolusite with depth. The marblized beds are about 40 feet stratigraphically above a rhyolite porphyry intrusion.
Local structures include the folding and warping of the limestone; bedding plane fault.
Workings include a surface stope, shaft and inclined workings to a depth of 30.48 meters and length of 121.92 meters. The stope is 40 feet high. Some 2,700 long tons of Mn ore averaging about 30-40% Mn were shipped in 1939-1946 and 1954-1956.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Hematite Formula: Fe2O3 References: |
| ⓘ Manganite Formula: Mn3+O(OH) |
| ⓘ 'Psilomelane' |
| ⓘ Pyrolusite Formula: Mn4+O2 |
| ⓘ 'Wad' |
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| ⓘ | Manganite | 4.FD.15 | Mn3+O(OH) |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Unclassified | |||
| ⓘ | 'Psilomelane' | - | |
| ⓘ | 'Wad' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Manganite | Mn3+O(OH) |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Manganite | Mn3+O(OH) |
| O | ⓘ Pyrolusite | Mn4+O2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Mn | Manganese | |
| Mn | ⓘ Manganite | Mn3+O(OH) |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Fe | Iron | |
| Fe | ⓘ Hematite | Fe2O3 |
Other Databases
| Link to USGS MRDS: | 10108962 |
|---|
Other Regions, Features and Areas containing this locality
Mexico
- Sierra Madre OccidentalMountain Range
North AmericaContinent
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
USA
- Arizona
- ⭔Tohono O'odham ReservationReservation
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Stella Maris No. 1 Mine, Sheridan Mountains, Cimarron Mining District, Cimarron & Sheridan Mountains, Pima County, Arizona, USA