Question 7
Write the chemical formulae of the following minerals:
Observation
This question was well attempted by the candidates and many of them scored
high marks.
The answers they gave included:
- Quartz;
- Calcite;
- Galena;
- Haematite.
- Quartz – SiO2
- Calcite – CaCO3
- Galena – PbS
- Haematite – Fe2O3