Ruth F. Schulte
Minerals Information commodity specialists collect and analyze information on production, trade, and consumption of minerals from raw material through refining to finished products. Mineral commodity specialists can answer questions on these aspects of a mineral commodity.
Professional Experience
Physical Scientist, U.S. Geological Survey (2017-Present)
Geologist, U.S. Geological Survey (2010-2017)
Laboratory Research Contractor, U.S. Geological Survey (2007-2010)
Graduate Research Assistant, University of Maryland, College Park (2004-2007)
Education and Certifications
M.S., Geology, University of Maryland, College Park (2007)
B.S., Geology, University of Maryland, College Park (2003)
Science and Products
Filter Total Items: 14
World minerals outlook—Cobalt, gallium, helium, lithium, magnesium, palladium, platinum, and titanium through 2029 World minerals outlook—Cobalt, gallium, helium, lithium, magnesium, palladium, platinum, and titanium through 2029
Given the rapid expansion in the demand for mineral commodities that underpin worldwide economic growth and technological advancement, information regarding expected country-level mine production and production capacity is becoming increasingly important to industry stakeholders, end users, and policymakers. Production capacity can limit future supply, depending on how rapidly that...
Authors
Elisa Alonso, Amanda Sarah Brioche, Ruth Schulte, Loyd Trimmer, Ji-Eun Kim, Andrew Gulley, David Pineault
Mineral commodity summaries 2025 Mineral commodity summaries 2025
Introduction Each mineral commodity chapter of the 2025 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production, reserves, and...
Mineral commodity summaries 2024 Mineral commodity summaries 2024
Each mineral commodity chapter of the 2024 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production, reserves, and resources. The...
Mineral commodity summaries 2023 Mineral commodity summaries 2023
Each mineral commodity chapter of the 2023 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production, reserves, and resources. The...
Mineral commodity summaries 2022 Mineral commodity summaries 2022
Introduction Each mineral commodity chapter of the 2022 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production, reserves, and...
Authors
Mineral commodity summaries 2021 Mineral commodity summaries 2021
Introduction Each mineral commodity chapter of the 2021 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production and resources. The...
Authors
Mineral commodity summaries 2020 Mineral commodity summaries 2020
Each chapter of the 2020 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production and resources. The MCS is the earliest...
Mineral Commodity Summaries 2019 Mineral Commodity Summaries 2019
Published on an annual basis, this report is the earliest Government publication to furnish estimates covering nonfuel mineral industry data and is available at https://minerals.usgs.gov/minerals/pubs/mcs/. Data sheets contain information on the domestic industry structure, Government programs, tariffs, and 5-year salient statistics for more than 90 individual minerals and materials.
Authors
Mineral resource of the month: Chromium Mineral resource of the month: Chromium
Although chromium is a metal, it does not occur naturally in metallic form. Chromium can be found in many minerals, but the only economically significant chromium-bearing mineral is chromite. Chromite has been mined from four different deposit types: stratiform chromite, podiform chromite, placer chromite, and laterite deposits. Most of the world's resources, however, are located in...
Authors
Ruth Schulte
Digital representation of exposures of Precambrian bedrock in parts of Dickinson and Iron Counties, Michigan, and Florence and Marinette Counties, Wisconsin Digital representation of exposures of Precambrian bedrock in parts of Dickinson and Iron Counties, Michigan, and Florence and Marinette Counties, Wisconsin
The U.S. Geological Survey (USGS) conducted a program of bedrock geologic mapping in much of the central and western Upper Peninsula of Michigan from the 1940s until the late 1990s. Geologic studies in this region are hampered by a scarcity of bedrock exposures because of a nearly continuous blanket of unconsolidated sediments resulting from glaciation of the region during the...
Authors
William Cannon, Ruth Schulte, Damon Bickerstaff
Mineral commodity summaries 2018 Mineral commodity summaries 2018
This report is the earliest Government publication to furnish estimates covering 2017 nonfuel mineral industry data. Data sheets contain information on the domestic industry structure, Government programs, tariffs, and 5-year salient statistics for more than 90 individual minerals and materials.
Authors
Joyce Ober
Compilation of gallium resource data for bauxite deposits Compilation of gallium resource data for bauxite deposits
Gallium (Ga) concentrations for bauxite deposits worldwide have been compiled from the literature to provide a basis for research regarding the occurrence and distribution of Ga worldwide, as well as between types of bauxite deposits. In addition, this report is an attempt to bring together reported Ga concentration data into one database to supplement ongoing U.S. Geological Survey...
Authors
Ruth F. Schulte, Nora Foley
Non-USGS Publications**
Schulte, Ruth F., 2007, Isotopic systematics of ultramafic and mafic rocks of the Taitao ophiolite, southern Chile (Master's thesis, University of Maryland-College Park). Retrieved from https://drum.lib.umd.edu/handle/1903/6705
Schulte, Ruth F.; Schilling, Manuea; Anma, Ryo; Farquhar, James; Horan, Mary F.; Komiya, Tsuyoshi; Piccoli, Philip M.; Pitcher, Lynette; and Walker, Richard J., 2009, Chemical and chronologic complexity in the convecting upper mantle: Evidence from the Taitao ophiolite, southern Chile: Geochimica et Cosmochimica Acta, vol. 73, n. 19, p. 5793-5819.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
World minerals outlook to 2029—Cobalt, gallium, helium, lithium, magnesium, palladium, platinum, and titanium data World minerals outlook to 2029—Cobalt, gallium, helium, lithium, magnesium, palladium, platinum, and titanium data
Given the rapid expansion in the demand for mineral commodities that underpin worldwide economic growth and technological advancement, information regarding expected country-level mine production and production capacity is becoming increasingly important. In particular, production capacity can limit future supply, depending on how rapidly that capacity is able to expand. This World...
Oxide and Cation Compositions of Olivine Grains from Drill Core in the Duluth Complex, Minnesota Oxide and Cation Compositions of Olivine Grains from Drill Core in the Duluth Complex, Minnesota
The table contains oxide and cation compositions of olivine grains from drill core of the Duluth Complex, Minnesota. The oxides were determined by electron probe microanalysis (EPMA) and are reported in weight percent (wt%). The cations were calculated based on the oxide compositions and are reported in mole percent (mol%). Olivine is a magnesium iron orthosilicate mineral with the...
Oxide and Cation Compositions of Feldspar Grains from Drill Core of the Duluth Complex, Minnesota Oxide and Cation Compositions of Feldspar Grains from Drill Core of the Duluth Complex, Minnesota
The table contains oxide and cation compositions of feldspar grains from drill core of the Duluth Complex. The oxides were determined by electron probe microanalysis (EPMA) and are are reported in weight percent (wt%). The cations were then calculated and are reported in mole percent (mol%). Feldspar grains are a group of rock-forming tectosilicate minerals with potassium (K), sodium (Na...
Oxide and Cation Compositions of Pyroxene Grains from Drill Core of the Duluth Complex, Minnesota Oxide and Cation Compositions of Pyroxene Grains from Drill Core of the Duluth Complex, Minnesota
The table contains oxide and cation compositions of pyroxene grains from drill core in the Duluth Complex. The oxides were determined by electron probe microanalysis (EPMA) and are reported in weight percent (we%). The cations were calculated from the oxide concentrations and are reported in mole percent (mol%). Pyroxene minerals are a group of rock-forming inosilicate minerals with...
Major, Minor, and Trace Element Compositions of Bulk Drill Core Samples from the Duluth Complex, Minnesota Major, Minor, and Trace Element Compositions of Bulk Drill Core Samples from the Duluth Complex, Minnesota
This table reports major, minor, and trace element compositions of bulk drill core samples from the Duluth Complex, Minnesota. Major elements were measured using wavelength dispersive X-ray fluorescence (XRF) and inductively coupled plasma atomic emission spectrometry (ICP-AES); minor and trace elements were determined using ICP-AES, inductively coupled plasma mass spectrometry (ICP-MS)...
Exposed Precambrian Bedrock in Part of Dickinson County, Michigan, and Marinette and Florence Counties, Wisconsin Exposed Precambrian Bedrock in Part of Dickinson County, Michigan, and Marinette and Florence Counties, Wisconsin
The U.S. Geological Survey conducted a program of bedrock geologic mapping in much of the central and western upper peninsula of Michigan and parts of Wisconsin from the 1940s until the late 1990s. Geologic studies in this region are hampered by a scarcity of bedrock exposures because of a nearly continuous blanket of unconsolidated sediments resulting from glaciation of the region...
Science and Products
Filter Total Items: 14
World minerals outlook—Cobalt, gallium, helium, lithium, magnesium, palladium, platinum, and titanium through 2029 World minerals outlook—Cobalt, gallium, helium, lithium, magnesium, palladium, platinum, and titanium through 2029
Given the rapid expansion in the demand for mineral commodities that underpin worldwide economic growth and technological advancement, information regarding expected country-level mine production and production capacity is becoming increasingly important to industry stakeholders, end users, and policymakers. Production capacity can limit future supply, depending on how rapidly that...
Authors
Elisa Alonso, Amanda Sarah Brioche, Ruth Schulte, Loyd Trimmer, Ji-Eun Kim, Andrew Gulley, David Pineault
Mineral commodity summaries 2025 Mineral commodity summaries 2025
Introduction Each mineral commodity chapter of the 2025 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production, reserves, and...
Mineral commodity summaries 2024 Mineral commodity summaries 2024
Each mineral commodity chapter of the 2024 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production, reserves, and resources. The...
Mineral commodity summaries 2023 Mineral commodity summaries 2023
Each mineral commodity chapter of the 2023 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production, reserves, and resources. The...
Mineral commodity summaries 2022 Mineral commodity summaries 2022
Introduction Each mineral commodity chapter of the 2022 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production, reserves, and...
Authors
Mineral commodity summaries 2021 Mineral commodity summaries 2021
Introduction Each mineral commodity chapter of the 2021 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production and resources. The...
Authors
Mineral commodity summaries 2020 Mineral commodity summaries 2020
Each chapter of the 2020 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production and resources. The MCS is the earliest...
Mineral Commodity Summaries 2019 Mineral Commodity Summaries 2019
Published on an annual basis, this report is the earliest Government publication to furnish estimates covering nonfuel mineral industry data and is available at https://minerals.usgs.gov/minerals/pubs/mcs/. Data sheets contain information on the domestic industry structure, Government programs, tariffs, and 5-year salient statistics for more than 90 individual minerals and materials.
Authors
Mineral resource of the month: Chromium Mineral resource of the month: Chromium
Although chromium is a metal, it does not occur naturally in metallic form. Chromium can be found in many minerals, but the only economically significant chromium-bearing mineral is chromite. Chromite has been mined from four different deposit types: stratiform chromite, podiform chromite, placer chromite, and laterite deposits. Most of the world's resources, however, are located in...
Authors
Ruth Schulte
Digital representation of exposures of Precambrian bedrock in parts of Dickinson and Iron Counties, Michigan, and Florence and Marinette Counties, Wisconsin Digital representation of exposures of Precambrian bedrock in parts of Dickinson and Iron Counties, Michigan, and Florence and Marinette Counties, Wisconsin
The U.S. Geological Survey (USGS) conducted a program of bedrock geologic mapping in much of the central and western Upper Peninsula of Michigan from the 1940s until the late 1990s. Geologic studies in this region are hampered by a scarcity of bedrock exposures because of a nearly continuous blanket of unconsolidated sediments resulting from glaciation of the region during the...
Authors
William Cannon, Ruth Schulte, Damon Bickerstaff
Mineral commodity summaries 2018 Mineral commodity summaries 2018
This report is the earliest Government publication to furnish estimates covering 2017 nonfuel mineral industry data. Data sheets contain information on the domestic industry structure, Government programs, tariffs, and 5-year salient statistics for more than 90 individual minerals and materials.
Authors
Joyce Ober
Compilation of gallium resource data for bauxite deposits Compilation of gallium resource data for bauxite deposits
Gallium (Ga) concentrations for bauxite deposits worldwide have been compiled from the literature to provide a basis for research regarding the occurrence and distribution of Ga worldwide, as well as between types of bauxite deposits. In addition, this report is an attempt to bring together reported Ga concentration data into one database to supplement ongoing U.S. Geological Survey...
Authors
Ruth F. Schulte, Nora Foley
Non-USGS Publications**
Schulte, Ruth F., 2007, Isotopic systematics of ultramafic and mafic rocks of the Taitao ophiolite, southern Chile (Master's thesis, University of Maryland-College Park). Retrieved from https://drum.lib.umd.edu/handle/1903/6705
Schulte, Ruth F.; Schilling, Manuea; Anma, Ryo; Farquhar, James; Horan, Mary F.; Komiya, Tsuyoshi; Piccoli, Philip M.; Pitcher, Lynette; and Walker, Richard J., 2009, Chemical and chronologic complexity in the convecting upper mantle: Evidence from the Taitao ophiolite, southern Chile: Geochimica et Cosmochimica Acta, vol. 73, n. 19, p. 5793-5819.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
World minerals outlook to 2029—Cobalt, gallium, helium, lithium, magnesium, palladium, platinum, and titanium data World minerals outlook to 2029—Cobalt, gallium, helium, lithium, magnesium, palladium, platinum, and titanium data
Given the rapid expansion in the demand for mineral commodities that underpin worldwide economic growth and technological advancement, information regarding expected country-level mine production and production capacity is becoming increasingly important. In particular, production capacity can limit future supply, depending on how rapidly that capacity is able to expand. This World...
Oxide and Cation Compositions of Olivine Grains from Drill Core in the Duluth Complex, Minnesota Oxide and Cation Compositions of Olivine Grains from Drill Core in the Duluth Complex, Minnesota
The table contains oxide and cation compositions of olivine grains from drill core of the Duluth Complex, Minnesota. The oxides were determined by electron probe microanalysis (EPMA) and are reported in weight percent (wt%). The cations were calculated based on the oxide compositions and are reported in mole percent (mol%). Olivine is a magnesium iron orthosilicate mineral with the...
Oxide and Cation Compositions of Feldspar Grains from Drill Core of the Duluth Complex, Minnesota Oxide and Cation Compositions of Feldspar Grains from Drill Core of the Duluth Complex, Minnesota
The table contains oxide and cation compositions of feldspar grains from drill core of the Duluth Complex. The oxides were determined by electron probe microanalysis (EPMA) and are are reported in weight percent (wt%). The cations were then calculated and are reported in mole percent (mol%). Feldspar grains are a group of rock-forming tectosilicate minerals with potassium (K), sodium (Na...
Oxide and Cation Compositions of Pyroxene Grains from Drill Core of the Duluth Complex, Minnesota Oxide and Cation Compositions of Pyroxene Grains from Drill Core of the Duluth Complex, Minnesota
The table contains oxide and cation compositions of pyroxene grains from drill core in the Duluth Complex. The oxides were determined by electron probe microanalysis (EPMA) and are reported in weight percent (we%). The cations were calculated from the oxide concentrations and are reported in mole percent (mol%). Pyroxene minerals are a group of rock-forming inosilicate minerals with...
Major, Minor, and Trace Element Compositions of Bulk Drill Core Samples from the Duluth Complex, Minnesota Major, Minor, and Trace Element Compositions of Bulk Drill Core Samples from the Duluth Complex, Minnesota
This table reports major, minor, and trace element compositions of bulk drill core samples from the Duluth Complex, Minnesota. Major elements were measured using wavelength dispersive X-ray fluorescence (XRF) and inductively coupled plasma atomic emission spectrometry (ICP-AES); minor and trace elements were determined using ICP-AES, inductively coupled plasma mass spectrometry (ICP-MS)...
Exposed Precambrian Bedrock in Part of Dickinson County, Michigan, and Marinette and Florence Counties, Wisconsin Exposed Precambrian Bedrock in Part of Dickinson County, Michigan, and Marinette and Florence Counties, Wisconsin
The U.S. Geological Survey conducted a program of bedrock geologic mapping in much of the central and western upper peninsula of Michigan and parts of Wisconsin from the 1940s until the late 1990s. Geologic studies in this region are hampered by a scarcity of bedrock exposures because of a nearly continuous blanket of unconsolidated sediments resulting from glaciation of the region...