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The top documents tagged [mineral pyrite fes]
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Acid Deposition Lake Barkevatn in Norway used to have healthy stocks of trout and perch. As a result of acid rain, the trout stock died out in the mid-1970s
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Minerals 2 talc. What is a Mineral ? Defining characteristics of minerals: Naturally occurring Inorganic (or at least never alive) Solid Ordered, repetitive
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