Images

Cross-polarized light photomicrograph of minerals in drill core samples from the Local Boy deposit, Duluth Complex, Minnesota. The number in the upper right hand corner is the drill core number.

Scientists sampling water and measuring streamflow in Keeley Creek, a stream in northern Minnesota that is in the vicinity of copper-nickel-platinum group element deposits. 

Jen Suttles,Woods Hole Coastal and Marine Science Center, collects water samples from a salt marsh tidal creek (East Falmouth, MA) for laboratory analysis of total organic carbon. These samples will be compared to data recorded by instrumentation deployed in an adjacent tidal creek as part of research efforts to quantify carbon dynamics in coastal ecosystems

Map of seabed geology and sun-illuminated topography, Stellwagen Bank Blue and purple = boulder ridges. Redlines = leading edges of sand sheets

Sand ridge morphology and bedform migration patterns offshore of Assateague Island

Eagle Creek at Zionsville, IN - water quality sonde

Eagle Creek at Zionsville, IN

Newly drilled well with water gushing

Stream measurement at Stony Creek at Noblesville, IN (Zach Razor)

This is a sample of axinite with iron, making it ferroaxinite. Axinite is primarily used as a collectors mineral.

Sample provided by Carlin Green, USGS. Sample originated from Puiva Mount, Russia, and is 3.0cm in size.

Elbaite is one of the best-known members of the tourmaline mineral family, particularly for its high-quality gemstones. Read more about the tourmaline mineral family here. 

Epidote is a silicate mineral used mostly as a semiprecious gemstone.

Sample provided by Carlin Green, USGS. Sample originated from Prince of Wales Island, Alaska, and is 6.0cm in size.

This sample is of the mineral cerussite, once an important source of lead for paints and pigments. With the phasing out of lead-based paints, cerussite is now mostly valued as a collectors mineral.

Sample provided by Carlin Green, USGS. Sample originated from Mibladen, Morocco, and is 5.6cm in size.

Browse graphic of point cloud data from low altitude aerial imagery from unmanned aerial system flights over Coast Guard Beach, Eastham, MA

Neil Ganju (standing) and Patrick Dickhudt preparing an oceanographic platform to measure wetland sediment transport in Forsythe NWR, New Jersey

Scanning Electron Microscope backscatter image of legacy steelmaking slag from the Calumet region, Chicago, Illinois, showing silicate minerals, some of which may have acid-neutralizing potential.

Yellow River near Brems, IN - view from bridge

White Oak Creek downstream of Jones Branch, KY

A sample of pyrite and quartz. Iron pyrite, also known as Fool's Gold due to its resemblance to gold, often occurs in quartz veins. Pyrite is an important source of sulfur dioxide, which is primarily used to create sulfuric acid, an important industrial acid.

A sample of native gold. Gold has been treasured since ancient times for its beauty and permanence.   Most of the gold that is fabricated today goes into the manufacture of jewelry, but it also performs critical functions in computers, communications equipment, spacecraft, jet aircraft engines, and a host of other products.

A sample of augelite and quartz. Augelite is an aluminum phosphate mineral, primarily prized for collecting rather than as a source for its industrial mineral components.

Sample provided by Carlin Green, USGS. Sample originated from Mundo Nuevo Mine, Peru, and is 3.7cm in size.