Original Old Dominion Mine (Keystone Mine; Keystone deposit; Keystone vein; Original Old Dominion vein), Pinal Creek, Burch, Globe Hills Mining District, Globe-Miami Mining District, Gila County, Arizona, USAi
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Latitude & Longitude (WGS84):
33° 26' 30'' North , 110° 48' 37'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Central Heights-Midland City | 2,534 (2011) | 4.2km |
| Copper Hill | 108 (2011) | 4.4km |
| Claypool | 1,538 (2011) | 4.5km |
| Globe | 7,396 (2017) | 5.7km |
| Miami | 1,783 (2017) | 7.2km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Gila County Gem & Mineral Society | Miami, Arizona | 7km |
Mindat Locality ID:
50935
Long-form identifier:
mindat:1:2:50935:5
GUID (UUID V4):
d7927a41-2b26-4fa2-a74c-19920e19062b
A former underground Cu-Au mine located in the E½ sec. 10, T1N, R15E, on 2 claims (Old Dominion claim; Keystone claim) on the east side of Pinal Creek, about 1 mile E of Burch and 3½ miles NW of Globe, on land of mixed status including patented (private). First worked by the Old Dominion Copper Co., the predecessor of the Old Dominion Co., but in 1883, this company bought the Globe, Globe Ledge, and Alice claims and transferred all its activities to development of the Old Dominion vein.
NOTE: Peterson (1962) makes reference to the Keystone Mine as being synonymous with the Original Old Dominion Mine (p. 69), citing Ransome (1903). Reference is again made on page 80 to the Keystone vein, placing it in the leached capping of the western portion of the Miami-Inspiration orebody, again citing Ransome 1903. On page 86 mention is made of the Keystone orebody being a portion of the Miami-Inspiration orebody. Finally, on page 97, the Original Old Dominion vein (Keystone vein) is listed among those veins in the Globe Hills area.
The vein is generally less than 1 foot (30 cm) wide and occupies a fissure that crops out in Dripping Spring quartzite. It strikes N.45ºE. and dips about vertical.
The ore consisted of an ocherous, dark red mixture of cuprite and iron oxides finely streaked with chrysocolla and malachite. The red oxides commonly showed native gold.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 Description: Finely streaked in dark red, ocherous ore. |
| ⓘ Cuprite Formula: Cu2O Description: Part of an ocherous, dark red mixture with iron oxides (limonite). |
| ⓘ Gold Formula: Au Description: Lode gold; short wires and thin leaves in dark red ocherous mixture of limonite & cuprite. |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Hematite var. Specularite Formula: Fe2O3 |
| ⓘ 'Limonite' Description: Occurs as part of a dark red, ocherous mixture with cuprite. |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Quartz Formula: SiO2 Colour: Blue, bluish-green (copper-stained) |
| ⓘ Quartz var. Chalcedony Formula: SiO2 Colour: Blue, bluish-green (copper-stained) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | var. Specularite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 9 - Silicates | |||
| ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Hematite var. Specularite | Fe2O3 |
| Al | Aluminium | |
| Al | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | Silicon | |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | ⓘ Quartz | SiO2 |
| Fe | Iron | |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Hematite var. Specularite | Fe2O3 |
| Cu | Copper | |
| Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS MRDS: | 10209564 |
|---|
Other Regions, Features and Areas containing this locality
North America
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mazatzal DomainDomain
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