What this chapter will buildSeparate mineral identity, rock mixtures, glass, organic material and fashioned objects.
Start here — no earlier chapter is needed.
Mineral, crystal, rock and gemstonePlanned
Compare composition, internal order and the purpose of each name.
Species, varieties and trade namesPlanned
Relate scientific identity to colour names and commercial labels.
Natural, synthetic and imitationPlanned
Distinguish origin from a different material resembling the original.
Specimen, tumbled stone and cut gemPlanned
Identify which surface features survive shaping and polishing.