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United States Bureau of Mines
行业: Mining
Number of terms: 33118
Number of blossaries: 0
Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources. Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
A red variety of chalcedony.
Industry:Mining
A red variety of wulfenite, containing some chromium.
Industry:Mining
A red, fossiliferous sedimentary iron ore; e.g., the Clinton Formation (Middle Silurian) or correlative rocks of the east-central United States, containing lenticular or oolitic grains of hematite. It supplies the ironworks at Birmingham, AL.
Industry:Mining
A red-colored beach sand containing garnets, as at Nome, AK.
Industry:Mining
A reddish or brownish variety of cassiterite in botryoidal or reniform shapes with internal concentric or fibrous structure.
Industry:Mining
A reddish or yellowish variety of cassiterite. Also spelled resin tin.
Industry:Mining
A reddish variety of potassium feldspar.
Industry:Mining
A reddish-brown residual soil found as a mantle over limestone bedrock, typically in the karst areas around the Adriatic Sea, under conditions of Mediterranean-type climate. Also spelled: terra rosa. Etymol: Italian, red earth.
Industry:Mining
A reducing flux composed of powdered carbon and alkali-metal carbonate.
Industry:Mining
A redundant frame in which the bending moments and reactions cannot be calculated from statical equations alone.
Industry:Mining
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