Properties of minerals.pdf
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Minerals are solid substances that form rocks and have properties like color, crystal form, hardness, and luster. They come in different colors like green copper, red ruby, and green emerald. Minerals grow as crystals that can be cubic like pyrite or pyramid-shaped like quartz. Hardness refers to how easy a mineral is to scratch, with talc being the softest and diamond the hardest. Lustre is how a mineral reflects light, with galena having a metallic luster and calcite a non-metallic one.
Properties of minerals.pdf
- 2. Minerals are solid substances that form rocks.There are some properties.
- 3. Minerals have different colours: Copper looks green and blue. Ruby looks red. Emerald looks green. Sapphire looks blue. COLOUR
- 4. CRYSTAL FORM Minerals grow as crystals. Some crystals are cubic, for exaple pyrite. Some crystals are like pyramids, for example quartz.
- 5. HARDNESS It means how easy it is to scratch a mineral. Talc is the softest material because it is very easy to scratch. Diamond is the hardest material. It is impossible to scratch.
- 6. LUSTRE It means how a mineral reflects the light. Galena has a metallic lustre. Calcite has a non- metallic lustre.