Final answer:
Galena as lead source, Hematite for iron, and Graphite in pencils and batteries.
Explanation:
Galena: Galena is used as a source of lead in various applications such as in batteries, radiation shielding, and soldering materials.
Hematite: Hematite is a source of iron, crucial in the production of steel, magnets, pigments, and in the manufacturing of certain types of cement.
Graphite: Graphite is utilized in the production of pencils, lubricants, and even as a crucial component in lithium-ion batteries.
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