Natural Minerals

36. Which mineral is commonly used in the production of cement?
a) Gypsum
b) Calcite
c) Feldspar
d) Clay

37. Which mineral is commonly used in the production of aluminum?
a) Bauxite
b) Hematite
c) Magnetite
d) Galena

38. Which mineral is commonly used in the production of steel?
a) Hematite
b) Bauxite
c) Calcite
d) Quartz

39. Which mineral is commonly used in the production of glass?
a) Quartz
b) Feldspar
c) Halite
d) Olivine

40. Which mineral is commonly used in the production of fertilizers?
a) Halite
b) Gypsum
c) Sulfur
d) Phosphate