Etta Mine
USA /
South Dakota /
Keystone /
World
/ USA
/ South Dakota
/ Keystone
quartz mine/processing, tin mine
A pegmatite deposit formed during the last stages of the cooling of a granitic mass. The spodumene crystals (lithium feldspar) found here were the biggest in the World, up to dozens of meters long. Other rare minerals were found.
Nearby cities:
Coordinates: 43°52'51"N 103°24'59"W
- Quartz, Montana 953 km
- Hunt Silica Mine 1296 km
- Ron Coleman Mining 1355 km
- Heraeus Quartz America 1993 km
- Quartz Corporation Mine 2015 km
- Unimin Schoolhouse Mine and Quartz Processing Plant 2022 km
- Hastings Farm 2330 km
- Zhelannaya 7810 km
- Quartz Mine 13584 km
- Quartz Quarry 14721 km
- Mount Rushmore National Memorial 2.6 km
- Keystone Y 5.5 km
- Mount Rushmore KOA at Palmer Gulch Resort 10 km
- Sheridan Lake 11 km
- Rafter J - Ranch 14 km
- Custer State Park 16 km
- Big Bend, South Dakota 20 km
- Johnson Siding, South Dakota 22 km
- Pactola Reservoir 23 km
- Castleton 28 km