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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
Regional Level Types
Stella Maris No. 1 Mine (Drew Springs Mine; Black Widow Mine)Mine
Sheridan MountainsMountain Range
Cimarron Mining District (Salt Well Mining District)Mining District
Cimarron & Sheridan MountainsMountain Range
Pima CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
32° 25' 55'' North , 112° 7' 0'' West
Latitude & Longitude (decimal):
32.43194,-112.11667
GRN:
N22W68
Type:
Mine
Köppen climate type:
BWh : Hot deserts climate
Nearest Settlements:
PlacePopulationDistance
Anegam151(2011)10.4km
Santa Rosa628(2011)14.0km
Kaka141(2011)20.6km
Maish Vaya158(2011)29.5km
Wahak Hotrontk114(2011)36.2km
Mindat Locality ID:
35621
Long-form identifier:
mindat:1:2:35621:2
GUID (UUID V4):
0


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

StandardDetailedGalleryStrunzChemical Elements

Gallery:

Fe2O3ⓘHematite
Mn4+O2ⓘPyrolusite

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘHematite4.CB.05Fe2O3
ⓘPyrolusite4.DB.05Mn4+O2
ⓘManganite4.FD.15Mn3+O(OH)
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Unclassified
ⓘ'Psilomelane'-
ⓘ'Wad'-

List of minerals for each chemical element

HHydrogen
HⓘManganiteMn3+O(OH)
CCarbon
CⓘCalciteCaCO3
OOxygen
OⓘCalciteCaCO3
OⓘHematiteFe2O3
OⓘManganiteMn3+O(OH)
OⓘPyrolusiteMn4+O2
CaCalcium
CaⓘCalciteCaCO3
MnManganese
MnⓘManganiteMn3+O(OH)
MnⓘPyrolusiteMn4+O2
FeIron
FeⓘHematiteFe2O3

Other Databases

Link to USGS MRDS:10108962

Other Regions, Features and Areas containing this locality

Mexico
North AmericaContinent
North America PlateTectonic Plate
USA

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, pleaseregister so you can add to our database. This locality information is for reference purposes only. You should never attempt tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary.

References

MRDS database Dep. ID file #10108962, MRDS ID #M000039; and, Dep. ID #10113880, MAS ID #0040190014.
Farnham, L. L., Stewart, L. A., DeLong, C. W. (1961) Manganese Deposits of Eastern Arizona.Information Circular 7990. Bureau of Minespp.109-111
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 116 (Table 4).
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