Natural Minerals

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61. Which mineral is commonly used in the production of steel?
a) Hematite
b) Graphite
c) Calcite
d) Halite

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62. Which mineral is the primary source of sulfur?
a) Quartz
b) Pyrite
c) Gypsum
d) Halite

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63. Which mineral is used in the production of ceramics?
a) Quartz
b) Feldspar
c) Calcite
d) Halite

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64. Which mineral is the primary source of copper?
a) Hematite
b) Chalcopyrite
c) Calcite
d) Halite

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65. Which mineral is used in the production of paints and coatings?
a) Gypsum
b) Hematite
c) Halite
d) Barite

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