Monarch Mine, Oro Blanco area mines (Oro Blanco Mine group), Oro Blanco Mining District (Ruby Mining District), Oro Blanco Mountains, Santa Cruz County, Arizona, USAi
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Latitude & Longitude (WGS84):
31° 24' 53'' North , 111° 15' 1'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Arivaca | 695 (2011) | 19.4km |
| Tumacacori-Carmen | 393 (2015) | 26.6km |
| Rio Rico | 18,962 (2011) | 26.7km |
| Aduana del Sásabe | 1,295 (2018) | 28.7km |
| Tubac | 1,191 (2011) | 29.3km |
‡Ref.: Blake (1899).
Wilson, E.D., Cunningham, J.B., and Butler, G.M. (1934), Arizona Lode Gold Mines and Gold Mining (revised 1967), Arizona Bureau of Mines Bull. 137: 191.
Knight, L.H., Jr. (1970) Structure and mineralization of the Oro Blanco mining district, Santa Cruz County, Arizona: Tucson, University of Arizona, Ph.D. dissertation, 172 p., 7 sheets, scales 1:1,200, 1:6,000, 1:16,000, 1:24,000, 1:60,000, 1:62,500, and 1:358,000.
Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 68 (Table 4).
U.S. Bureau of Mines file data, Monarch Mine.
Santa Cruz County Recorder's records.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10039554, MRDS ID #M050270; and, Dep. ID #10186737, MAS ID #0040230069.
A former underground Au-Ag-Cu mine located in the NE¼ sec. 19, T.23S., R.11E., SE of the Tres Amigos Mine adit and about 4 miles SW of Ruby, on National Forest land. Owned at times, or in part, by Hatcher & Carpenter; Dale; and, Chenoweth.
Mineralization is brecciated, lensing fissure zone in Jurassic tuff. Brecciated to pulverized country rock in the lenticular bodies is cemented by finely crystalline quartz containing fine to medium native gold and silver mineralization with iron and manganese oxides. The host rock unit is the Oro Blanco Formation. An associated rock unit is the Sidewinder Quartz Monzonite. Ore control was the contact between the quartz monzonite dike and the conglomerate. Alteration is minor.
Local structures include NW- and NE-trending fault zones. Tectonic elements include the Oro Blanco Fault Block.
Workings include 2 shallow shafts with some lateral work & open cut operations.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Native Gold Formula: Au Description: As fine to medium-grained native gold alloyed with silver. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
List of minerals for each chemical element
| Au | Gold | |
|---|---|---|
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS MRDS: | 10039554 |
|---|
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
- Southern Basin and RangeWide Rift
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