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| assay |
an analysis or examination, esp. of an ore, metal, or drug, to determine its composition, quality, or potency. [1/8 definitions] |
| azurite |
a bright azure-blue mineral that serves as a copper ore. [1/2 definitions] |
| barytes |
the principal ore of barium; barite. |
| bauxite |
the primary ore of aluminum, containing various impurities. |
| blast furnace |
a large, vertical furnace in which metal, esp. iron, is smelted from ore by means of heat intensified by a blast of air forced in at the bottom. |
| bonanza |
a rich vein of valuable ore in a mine. [1/2 definitions] |
| cassiterite |
a mineral ore, tin dioxide, that is the principal source of tin. |
| chalcopyrite |
a common but important copper ore, characterized by its brassy yellow color. |
| cinnabar |
a reddish mineral that is the main ore of mercury and is sometimes used as a pigment; mercuric sulfide. [1/2 definitions] |
| dress |
to prepare (stone, ore, timber, skins, or the like) by a special process. [1/11 definitions] |
| extract |
to separate or draw out (juice from a fruit, metal from an ore, or the like) by pressure, distillation, or chemical action. [1/9 definitions] |
| ferric oxide |
a red-brown solid compound in the natural form of iron ore or rust, processed for use as a pigment and in metallurgy, magnetic tapes and polishing compounds. |
| flotation |
any of several processes of separating and collecting various minerals from powdered ore, based on the minerals' ability to float in various liquids. [1/3 definitions] |
| gad2 |
a pointed tool or spike used in mining ore or rock. [2/3 definitions] |
| galena |
a grayish mineral consisting mainly of lead sulfide and constituting the chief ore of lead. |
| gang2 |
the valueless minerals, rocks, or the like found mixed with valuable ore; gangue. |
| gangue |
the valueless minerals, rocks, or the like found mixed with valuable ore; gang. |
| gold mine |
a place where gold ore is mined. [1/2 definitions] |
| hematite |
a steel-gray or darkish red mineral that is the main form of iron ore, iron oxide. |
| high-grade |
of an ore, containing a high percentage of the desired metal. [1/2 definitions] |
| krona1 |
the chief monetary unit of Sweden, equaling one hundred öre. |
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