- 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 ...
Mex. Silver ore, generally colored with some iron sulfate, the result of weathering.
Industry:Mining
MgTiO<sub>3</sub>. Used in ceramic dielectric bodies. Although relatively low in dielectric constant, it has a positive temperature coefficient of capacity. Thus, it can be used in conjunction with a negative coefficient material; e.g., titania, to produce a near 0 temperature coefficient product.
Industry:Mining
MgZrO; melting point, 2,150 degrees C. This compound is sometimes added in small amounts (up to 5%) to other electroceramic bodies to lower their dielectric constant at the Curie point.
Industry:Mining
Mica that because of size, color, or quality is below specifications for sheet mica. Includes flake mica and the mica, except sheet, obtained from pegmatite mining as a sole product or as a byproduct, from the preparation of sheet mica, and from waste in fabricating sheet mica.
Industry:Mining
Mica that is relatively flat and sufficiently free from structural defects to enable it to be punched or stamped into specified shapes for use by the electronic and electrical industries. Sheet mica is classified further as block, film, and splittings.
Industry:Mining
Mica that, when slightly flexed or distorted with thumb pressure, generally does not show any tendency to delaminate. Such mica, in thick pieces, will give an almost metallic sound when tapped or dropped on a hard surface.
Industry:Mining
Mica which, when slightly flexed or distorted with thumb pressure, generally shows a tendency toward delamination. Such mica, in thick pieces, generally gives a dull sound when tapped against a hard surface.
Industry:Mining
Mica with a minimum thickness of 0.007 in (0.18 mm) and a minimum usable area of 1 in<sub>2</sub>(6.45 cm<sub>2</sub>), full trimmed unless otherwise specified.
Industry:Mining
