Natural Minerals

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

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

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

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

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