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#1 Federal
Microscopic Images of Leonardite and Humate Biochar: Using Reflected Light Microscopy in Biochar Characterization
- Organization: Department of the Interior
- Dataset Last Updated: April 26, 2024 at 12:00 AM
Biochar is a carbon-rich substance that is derived through the thermochemical conversion of biomass. Biochar is recognized for its significance in environmental applications and sustainable...
- xml
- xml
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: May 05, 2026 at 08:31 PM
#2 Federal
Minerals Yearbook, volume III, Area Reports — International: 2019 country chapters, table 1, production of mineral commodities
- Organization: Department of the Interior
- Dataset Last Updated: August 21, 2025 at 12:00 AM
This data release contains the compilation of country level mineral commodity production data extracted from Table 1 within all published 2019 international chapters in the U.S. Geological...
- xml
- xml
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: May 05, 2026 at 08:29 PM

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