Unnamed Occurrence (ARDF - SR058; Billings Glacier), Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - SR058; Billings Glacier) | - not defined - |
| Prince William Sound Mining District | Mining District |
| Valdez-Cordova Census Area | Census Area |
| Alaska | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
60° 50' 48'' North , 148° 36' 7'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Whittier | 214 (2018) | 9.2km |
The U.S. Bureau of Mines determined that this occurrence has a high mineral potential for specimen-grade quartz crystals.
Location: This occurrence is at an elevation of 400 feet on the west side of the terminus of the Billings Glacier. It is located in NE1/4 section 29, T. 9 N., R. 5 E., of the Seward Meridian. This is location S-170 of Jansons and others (1984). This location is accurate to within a quarter of a mile.
Geology: This occurrence consists of a 12-foot-wide pegmatite body in Eocene biotite-quartz monzonite (Hoekzema and Sherman, 1981). The pegmatite contains clay-filled vugs lined with euhedral, doubly terminated quartz crystals as much as 18 inches long. The quartz crystals are translucent and commonly coated with muscovite. The clay surrounding the quartz crystals was sampled and analyzed. It contained 1,000 ppm titanium, 10,000 ppm sodium, 20 ppm gallium, and 100 ppm vanadium (Hoekzema and Sherman, 1983).
Workings: A small, hand-dug prospect pit has been excavated for the purpose of removing quartz crystals. The clay surrounding the quartz crystals was analyzed and contained 1,000 ppm titanium, 10,000 ppm sodium, 20 ppm gallium, and 100 ppm vanadium (Hoekzema and Sherman, 1983).
Age: Eocene of younger; the pegmatite cuts Eocene intrusive rock.
Production: Some 300 pounds of specimen-grade quartz has been collected (Hoekzema and Sherman, 1983).
Commodities (Major) - Quartz crystals
Development Status: Undetermined.
Deposit Model: Pegmatite
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Albite Formula: Na(AlSi3O8) |
| ⓘ Albite var. Cleavelandite Formula: Na(AlSi3O8) |
| ⓘ 'Clay minerals' |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | var. Cleavelandite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Clay minerals' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| K | Potassium | |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Other Databases
| Link to USGS - Alaska: | SR058 |
|---|
Other Regions, Features and Areas containing this locality
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
