Skip to content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

Global Geochemical Database for Critical Minerals in Archived Mine Samples

Metadata Updated: October 13, 2022

The Critical Minerals in Archived Mine Samples Database (CMDB) contains chemistry and geologic information for historic ore and ore-related rock samples from mineral deposits in the United States. In addition, the database contains samples from archetypal deposits from 27 other countries in North America, South America, Asia, Africa and Europe. Samples were obtained from archived ore collections under the U.S. Geological Survey's project titled “Quick Assessment of Rare and Critical Metals in Ore Deposits: A National Assessment” (2008 to 2013) in an effort to begin an assessment of the Nations' previously mined ore deposits for critical minerals. Mineralized and altered rock samples were provided by the Colorado School of Mines—Ransome collection, Mackay School of Mines—Stanford and Keck collections, and by the personal collections of Don Bryant and David Leach.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date October 13, 2022
Metadata Updated Date October 13, 2022

Metadata Source

Harvested from DOI DCAT-US harvest source

Additional Metadata

Resource Type Dataset
Metadata Created Date October 13, 2022
Metadata Updated Date October 13, 2022
Publisher U.S. Geological Survey
Maintainer
Identifier USGS:5e616381e4b01d509255c7b6
Data Last Modified 20200910
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id c47362b3-ba4f-461c-ae97-eccfcc0ba05e
Harvest Source Id bee011ae-6f4a-4b9b-bef9-6c8b6453c562
Harvest Source Title DOI DCAT-US harvest source
Metadata Type geospatial
Old Spatial -162.8379, -36.8340, 152.4897, 68.0704
Publisher Hierarchy Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 0a24db36eba2dcceffe61c336b6ea5ced988589e
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -162.8379, -36.8340, -162.8379, 68.0704, 152.4897, 68.0704, 152.4897, -36.8340, -162.8379, -36.8340}

Didn't find what you're looking for? Suggest a dataset here.

data.gov

An official website of the General Services Administration.

Looking for U.S. government information and services?
Visit USA.gov