Good Enough claims Nos. 1 and 2, Good Enough Mine group (Zappia claims; Soto and Esperanza groups), Las Guijas area, Las Guijas Mountains, Arivaca Mining District (Las Guijas Mining District), Las Guijas & San Luis Mountains, Pima County, Arizona, USAi
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Latitude & Longitude (WGS84):
31° 38' 53'' North , 111° 21' 51'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Arivaca | 695 (2011) | 8.7km |
| Aduana del Sásabe | 1,295 (2018) | 26.2km |
| Amado | 295 (2011) | 29.1km |
| Arivaca Junction | 1,090 (2011) | 30.0km |
| Tubac | 1,191 (2011) | 30.4km |
Ref.: Wilson, E.D. (1941), Tungsten Deposits of Arizona, Geological Series No. 14, Arizona Bureau of Mines Bull. 148:
Lemmon, D.M. (1945), Tungsten Deposits of Arizona, USGS unpublished data.
Dale, V.B., Stewart, L.A., and McKinney, W.A. (1960), Tungsten deposits of Cochise, Pima, and Santa Cruz Counties., Arizona, U.S. Bureau of Mines Report of Investigation 5650.
Sheikh, A.M. (1970) Geology and ore deposits of Las Guijas tungsten district, Pima County, Arizona: Economic Geology: 65(7): 875-882.
MRDS database Dep. ID file #10039535, MRDS ID #M050237.
A former small underground W-Ag-Au-Pb-Cu mine located in sec. 31, T20S, R10E, about 2 miles southeast of Las Guijas on the north side of the Las Guijas Mountains. Discovered 1892. Produced 1941. Owned by G.A. Prandini and J.A. Zappia. Operated by Frank Zappia, Don Lieberman Enterprises, Inc. and then Lemas.
Mineralization is ore in irregular, pinch and swell deposits in quartz lenses in irregular fracture zone through a granitic formation; exposed for 800 feet along the strike. Ore control was volcanic breccia at the contact with andesite. Alteration was iron and coopper stains. Wall rock is altered to sericite.
Structural trends and allignments are the same as others in the Las Guijas group, but mineralization is in volcanic breccia and not in granite or contact. Ore shoots are sporadic and separated by barren lenses.
Local structures include cross-faulting and post-mineralization lamprophyre dike intrusions.
This mine was first located for silver; it was subsequently abandoned and relocated several times. Sheikh (1970) says that Huebnerite, scheelite and sulfides are absent.
Workings include 3 adits and some stopes and are 33.53 meters deep.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ 'Copper Stain' |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| Unclassified | |||
| ⓘ | 'Copper Stain' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| K | Potassium | |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
Other Databases
| Link to USGS MRDS: | 10039535 |
|---|
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
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