GEOLOGY
GEOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Valuable
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Broken
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Costs more to take than the worth
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Put in water
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Detailed explanation-1: -An ore is a rock that contains important minerals. An ore deposit must be profitable to mine. If it is no longer profitable, it is no longer an ore deposit. Geologists find ore deposits by testing the chemistry of the rock and soil.
Detailed explanation-2: -What might cause a mineral deposit that had not been considered an ore to become reclassified as an ore? Ore is used to define those useful metallic mineral’s that can be mine at a profit. A deposits may become profitable to extract or lose its profitability because of economic changes.
Detailed explanation-3: -In general, the higher the concentration of the substance, the more economical it is to mine. Thus we define an ore as a body of material from which one or more valuable substances can be extracted economically. An ore deposit will consist of ore minerals, that contain the valuable substance.
Detailed explanation-4: -Some ores are valued for their mineral properties, some for the elements they contain, and others because they contain valuable gems. The best ore deposits are those containing large amounts of ore minerals. The best metal ore minerals are those that contain large amounts of metals of value.