Where is gadolinium mined

Approximate locations and short descriptions of mines, deposits, and districts where critical minerals are found. The critical minerals are discussed in USGS Professional Paper many of these locations are described in further detail in that report.

This report releases data for waters in which naturally occurring acid-rock drainage occurs but acid-mine drainage from historical mining continues to contribute dissolved metals further degrading preexisting water quality. Geochemistry of concentrates from the National Geochemical Database.

Primarily inorganic elemental concentrations, most samples are from the continental US and Alaska. Geochemical analysis of rock samples collected and analyzed by the USGS.

Geochemical analysis of sediment samples from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are of stream sediment in the continental US and Alaska.

Geochemical analysis of soil samples from the National Geochemical Database. Scanned image of map drawn at ,, scale, projection probably Lambert Conformal Conic, monochrome. Geological setting, characteristics of the deposit itself, and detailed geochemical analyses of rocks in and around the deposit. Location, geologic and mineral economic data for world rare earth mines, deposits, and occurrences compiled from published and non-published sources.

Geographic coordinates are provided for of the deposits described here. Detailed descriptions of more than mineral districts, mines, and mineral occurrences deposits, prospects, and showings within the United States that are reported to contain substantial enrichment of rare earth elements. Because of their unusual physical and chemical properties, the REEs have diverse defense, energy, industrial, and military technology applications including glass, petroleum refining, automobiles, and magnets.

Geochemical analysis and characteristics of bauxite deposits in this area. Data from field sampling of mine tailings, wasterock, sediment, water, and biota at the mine in Results permit a preliminary assessment of the mining sources of Hg and associated chemicals that could produce elevated levels of monomethylmercury.

Data in this report will be used to better understand the processes that control epithermal mineral-deposit formation by attempting to relate the geochemistry of the primary structures that hosted hydrothermal fluid flow to their heat and fluid sources. Weight percent of 15 mineral groups from samples, geochemical analyses of 58 major and trace-element chemical species from samples taken at sites, along with data from geochemical reference standards and analyses of splits.

Periodic sampling of water during the spring of was carried out to understand the range and timing of variation in pH and metal concentration, and help evaluate variation in water quality during spring runoff.

Geochemical and mineralogical analyses of plutonic rock samples. Georeferenced images depicting the concentration of 68 chemical elements in the near-surface materials sediments and soils.

Explains how and where rare-earth resources form and concentrate and how they are used and interact with the environment to affect human and ecosystem health. Discusses supply and demand trends and where undiscovered sources of rare-earths might be found. A developing national-scale geospatial database that will be an authoritative source of information on the most important mines, mineral deposits, and mineral districts of the United States.

This report releases data, cross section, and model information related to the identification of travel paths for groundwater supply and principal stratigraphic and structural features that serve as constraints or conduits for groundwater movement.

This category is also used for Gd. Lanthanide series elements. Results listed by similarity [ list alphabetically ]. Alaska Geochemical Database, v2 Geochemical analyses of rock, sediment, soil, mineral, and heavy mineral concentrate samples in Alaska analyzed from through , with best-value estimates. General Delivery Conditions. Privacy Policy. All rights reserved. Atomic number. Gadolinium Gadolinium is a soft, shiny, ductile, silvery metal belonging to the lanthanide group of the periodic chart.

Applications Gadolinium has found some use in control rods for nuclear reactors and nuclear power plants; it is used to make garnets for microwave applications and its compounds are used for making phosphorous for colour TV tubes. Gadolinium in the environment Gadolinium is one of the more abundant rare-earth elements. Health effects of gadolinium Gadolinium, as the other lanthanides, forms compounds of low to moderate toxicity.

Alpha gadolinium transforms into the beta form, which has a body-centered cubic structure, when heated to 2, F 1, C. The metal is relatively stable in dry air, but tarnishes in moist air. The metal is soluble in dilute acid and reacts slowly with water. At 49, barns, gadolinium has the highest thermal neutron capture cross-section of all the recognized elements. Obtained from the mineral gadolinite, gadolinium is also found in several other minerals, including monazite and bastnasite, which have commercial implications.

With the development of ion-exchange and solvent extraction techniques, gadolinium and the other rare earth metals have become more available and prices have dropped..