Samling af 24 mineraler
The collection of 24 minerals 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 2. Sulphides: bournonite, galenite and pyrite 3. Halogenides: fluorite and halite 4. Oxides: hematite, quartz and rutile 5. Carbonates: calcite and dolomite 6. […]