Bondholder Mine, Fairbanks Mining District, Fairbanks North Star Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Bondholder Mine | Mine |
| Fairbanks Mining District | Mining District |
| Fairbanks North Star Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 52' 33'' North , 148° 0' 10'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Ester | 2,422 (2011) | 3.2km |
| College | 12,964 (2011) | 9.7km |
| South Van Horn | 558 (2017) | 12.5km |
| Fairbanks | 32,325 (2017) | 14.2km |
| Farmers Loop | 4,853 (2017) | 14.8km |
Location: The Bondholder mine is at the head of the north fork of Saint Patrick Creek at an elevation of about 1,250 feet. It is about 1.5 miles east of the top of Ester Dome. The Bondholder workings are at the north end of the Mohawk group of claims (FB061). The mine is locality 156 of Cobb (1972 [MF 410]).
Geology: The Bondholder vein was opened by at least two shafts and several pits (Hill, 1933, p. 146). About 200 feet north of these shafts, an opening exposed a 4.5-foot-wide vein in mica schist that was oriented N. 24 E., dipping 45 NW. The vein contained iron- and arsenic-oxide stained quartz, a sample of which assayed $10.29 gold per ton (0.5 ounce of gold per ton) (Hill, 1933, p. 146). The vein averaged 6 feet in thickness in a 142-foot shaft. By 1931, five hundred tons of ore had been mined from the Bondholder vein.
Workings: The Bondholder vein was opened by at least two shafts, one 142 feet deep, and several pits (Hill, 1933, p. 146).
Alteration: Quartz is iron- and arsenic-oxide stained (Hill, 1933).
Production: By 1931, five hundred tons of ore had been mined from the Bondholder vein (Hill, 1933).
Commodities (Major) - Au
Development Status: Yes; small
Deposit Model: Schist-hosted gold-quartz vein
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
1 valid mineral.
Detailed Mineral List:
| ⓘ Native Gold Formula: Au |
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 - Alaska: | FB038 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- North America PlatformPassive Margin
- Yukon-Tanana lower DomainDomain
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