The collection contains examples of ten classes of minerals: elements, sulphides, halogenides, oxides, carbonates, borates, sulphates, silicates, phosphates and organic compounds.
The collection contains:
1. Elements: graphite and sulphur ...
Ordinal Mohs’ hardness scale with minerals in boxes with
a hardness of 1-10. The mineral in level 10, diamond, is
included as a diamond tool.
The set includes: