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United States Bureau of Mines
Industry: 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 ...
Filling or choking the waterways of a bit with drill cuttings; mudding up.
Industry:Mining
Filling voids with clay in limestone from which sulfur has been extracted.
Industry:Mining
Fillings of a cavity left by solution or sublimation of a crystal embedded in a finegrained sediment.
Industry:Mining
Fillings of old workings in a mine, and said to carry gold of recent deposition. This is a product that deposits in most of the old stopes throughout the mine. In some instances, the whole stope for 20 ft (6.1 m) wide is filled. It is apparently siliceous material with more or less pyrite.
Industry:Mining
Films of one constituent of an alloy surrounding the crystals of another constituent.
Industry:Mining
Final sample taken for test when a small quantity of finely ground mineral is required for assay. A suitable quantity of dry material is thoroughly mixed on glazed cloth or paper, if necessary, being rolled lightly with a round bottle to break down any floccules. It is then flattened to a disk and eight equal segments are marked out diametrically with a spatula. Approx. equal quantities are taken from each segment and from the center, making the nine points of withdrawal.
Industry:Mining
Fine aggregate produced by crushing rock.
Industry:Mining
Fine aggregates of ferrite and cementite in steel; emulsified ferrite.
Industry:Mining
Fine and often unburned dust settling out in steamy, warm conditions in stagnant situations.
Industry:Mining
Fine gravellike ore, occurring free in mud openings, or derived from the breaking of the ore in blasting. A variation of smeddum.
Industry:Mining