Good Friday Mine, Blue Jay-Good Friday Mines, Sycamore Canyon, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Good Friday Mine | Mine |
| Blue Jay-Good Friday Mines | Group of Mines |
| Sycamore Canyon | Canyon |
| Helvetia | Town (Former) |
| Helvetia-Rosemont Mining District | Mining District |
| Pima County | County |
| Arizona | State |
| USA | Country |
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Type:
Other/historical names associated with this locality:
Good Friday No. 2; St. Louis; Cedar
Ref.: Schrader, F.C. (1915) Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, with contributions by J.M. Hill: U.S. Geological Survey Bulletin 582, 373 p., 3 sheets, scale 1:125,000: 132-134.
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 124 (Table 4).
Arizona Bureau of Mines file data.
A Ag-Au-Pb-Cu-W mine located in West-central sec. 12, T.18S., R.15E. Owned at times, or in part, by the Iowa Mining & Development Co.; the Good Friday Mining Co.; Corzelius; and, Taggert & Drunzer.
Mineralization is tabular replacement deposits of sulfides, oxidized near the surface, with rich chlorargyrite and free gold, along steep bedding planes and lamprophyric dikes in Permian limestone bordering Laramide intrusive quartz monzonite. Some copper staining and scheelite in the area.
Workings include tunnel, shaft and open cuts. Worked sporadically from 1881 to 1939, producing some 2,300 tons of ore together with the Blue Jay Mine, averaging about 21 oz. Ag/T, 1 oz. Au/T, and minor Pb. High-grade Ag-Au ore in surface cuts.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Acanthite Formula: Ag2S |
| ⓘ Chlorargyrite Formula: AgCl Description: Rich near the surface. |
| ⓘ Galena Formula: PbS |
| ⓘ Galena var. Silver-bearing Galena Formula: PbS with Ag |
| ⓘ Native Gold Formula: Au Description: Rich free lode gold near the surface. |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Scheelite Formula: Ca(WO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Acanthite | 2.BA.35 | Ag2S |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | var. Silver-bearing Galena | 2.CD.10 | PbS with Ag |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Chlorargyrite | 3.AA.15 | AgCl |
| 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) |
| S | Sulfur | |
| S | ⓘ Acanthite | Ag2S |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Cl | Chlorine | |
| Cl | ⓘ Chlorargyrite | AgCl |
| Ca | Calcium | |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Ag | Silver | |
| Ag | ⓘ Acanthite | Ag2S |
| Ag | ⓘ Chlorargyrite | AgCl |
| Ag | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
Other Regions, Features and Areas containing this locality
USA
- Arizona
- Santa Rita MountainsMountain Range
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