A collection of images from the United States Geological Survey serves the Nation by providing reliable scientific information to describe and understand the Earth.
United States · 526 photos · 1 collection
Chalcopyrite, Pentlandite, Pyrrhotite
- Views
- 809.6K
- Downloads
- 11.4K
- Likes
- 167
- Published
- March 20, 2020
- Dimensions
- 5472 × 3648
- Camera
- Canon, EOS 70D
- Settings
- 100mm · f/7.1 · 1/4s · ISO 100