Mineralogy classifies in crystal science (1), mineral science (2) and petrography (3).
Crystal science or crystallography knows 230 crystal structures or space groups.
Mineral Science split in geochemistry, special mineralogy and applied mineralogy.
Petrography describes mono- or polymineralic aggregates of minerals.
Tools of a mineralogist are
Knowledge of chemical reactions of raw materials in use and their phase diagrams.
Experience and skills in handling a x-ray powder diffraction [XRD] and calorimeter.
Literature and Internet-Links to mineralogy and cement chemistry.