Colour
- Colour is one of the most attractive properties of a mineral.
- The colour of a mineral is also a clue to it's identity.
- Two or more minerals may have the same colour.
- Depending on what's inside a mineral determines what colour it is.
- Corundum (made of aluminum and oxygen) is white when pure.
- When corundum contains titanium and/or iron, it is blue (and called a sapphire).
- When corundum contains chromium, it is red (and called a ruby).
- The colour of a mineral is also a clue to it's identity.
- Two or more minerals may have the same colour.
- Depending on what's inside a mineral determines what colour it is.
- Corundum (made of aluminum and oxygen) is white when pure.
- When corundum contains titanium and/or iron, it is blue (and called a sapphire).
- When corundum contains chromium, it is red (and called a ruby).