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Stella Maris No. 1 Mine (Drew Springs Mine; Black Widow Mine), Sheridan Mts, Cimarron Mining District (Salt Well Mining District), Cimarron & Sheridan Mts, Tohono O'odom (Papago) Indian Reservation, Pima Co., Arizona, USAi
Regional Level Types
Stella Maris No. 1 Mine (Drew Springs Mine; Black Widow Mine)Mine
Sheridan MtsMountain Range
Cimarron Mining District (Salt Well Mining District)Mining District
Cimarron & Sheridan MtsMountain Range
Tohono O'odom (Papago) Indian ReservationReservation
Pima Co.County
ArizonaState
USACountry

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Key
Latitude & Longitude (WGS84):
32° 25' 55'' North , 112° 7' 0'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
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


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.

Regions containing this locality

North America PlateTectonic Plate
Sonoran Desert, North AmericaDesert
Tohono O'odham Indian Reservation, Arizona, USAReservation

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals.

Detailed Mineral List:

Calcite
Formula: CaCO3
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 116 (Table 4); Farnham, et al (1961): 109-111.
Hematite
Formula: Fe2O3
Reference: Rolf Luetcke
Manganite
Formula: Mn3+O(OH)
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 116 (Table 4); Farnham, et al (1961): 109-111.
'Psilomelane'
Formula: Mn, O
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 116 (Table 4); Farnham, et al (1961): 109-111.
Pyrolusite
Formula: Mn4+O2
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 116 (Table 4); Farnham, et al (1961): 109-111.
'Wad'
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 116 (Table 4); Farnham, et al (1961): 109-111.

List of minerals arranged by Strunz 10th Edition classification

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

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Pyrolusite4.4.1.4Mn4+O2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Manganite6.1.3.1Mn3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Unclassified Minerals, Mixtures, etc.
'Psilomelane'-Mn, O
'Wad'-

List of minerals for each chemical element

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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Farnham, L.L., Stewart, L.A., and Delong, C.W. (1961), Manganese Deposits of Eastern Arizona, US Bureau of Mines Information Circular 7990: 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).
MRDS database Dep. ID file #10108962, MRDS ID #M000039; and, Dep. ID #10113880, MAS ID #0040190014.

USGS MRDS Record:10108962
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