Examlex
Because χ2 is sensitive to small cell counts, you should always collect a large enough sample so that observed and expected cell sizes are all above 5.
Ore
A rock, sediment, or other material that can be mined for a profit.
Mineral Deposit
Concentrated accumulations of minerals from which economically valuable materials can be extracted.
Oxide
1. Any member of a group of minerals that consist of oxygen bonded with a metallic element, like iron. 2. Mineralized rock that contains minerals, especially those of iron and copper, that formed near the surface or in other oxidizing conditions.
Sulfide
A compound characterized by the presence of sulfur bonded with a metallic element or another nonmetal.
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