Sunset Limited Mine group (Sunset Limited group of claims; Yellow Aster group of claims; Wonder Mine), Gunsight Mining District (Meyer Mining District), Pima County, Arizona, USAi
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Latitude & Longitude (WGS84):
32° 10' 45'' North , 112° 37' 54'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Why | 167 (2017) | 14.2km |
| Wahak Hotrontk | 114 (2011) | 25.0km |
| Ajo | 3,304 (2011) | 30.4km |
| Pisinemo | 321 (2011) | 33.2km |
| Adolfo López Mateos | 201 (2014) | 37.8km |
‡Ref.: Wilson, E.D. (1941), Tungsten deposits of Arizona, Arizona Bureau of Mines Bull. 148: 41.
Lemmon, D.M., and Tweto, O.L. (1962) Tungsten in the U.S., USGS map, MR-25.
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 123 (Table 4); Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10048195, MRDS ID #M800266.
A former small surface and underground Ag-Au-W mine group located in the SW ¼ sec. 25, T.14S., R.4W., 19 miles SE of Ajo. Started before 1917. Owned at times, or in part, by A.W. Bramwell & J.J. Sullivan (circa 1917); the Gunsight Gold & Tungsten Mining Co.; Jones; Greer; Myers; and, Turners.
Mineralization is shear zones with lenticular, oxidized, iron-stained, quartz veins containing pockets of enriched gold, minor silver, and spotty scheelite cutting a weathered Laramide granitic pediment. The principal vein strikes N.30ºW. to N.60ºW. and dips steeply, and is 1.22 meters wide. They consist of shear zones 3 to 4 feet thick.
Workings include open cuts and several shafts 80 to 100 feet (30.48 meters) deep. Prospected and worked sporadically since the late 1800's. Produced probably some 50 tons of 1 oz. Au/T ore and a few tons of scheelite ore. The deposit was worked about 1917 with an output of about 1 ton od scheelite ore.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
|---|---|---|---|
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Scheelite | Ca(WO4) |
| Ca | Calcium | |
| Ca | ⓘ Scheelite | Ca(WO4) |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
Other Databases
| Link to USGS MRDS: | 10048195 |
|---|
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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