Key Stage 2
Meaning
![](/images/thumb/d/d6/GraniteCrystals.png/300px-GraniteCrystals.png)
A magnified image of granite showing the crystals.
A rock crystal is a rock grain with sharp edges.
About Rock Crystals
- Crystals are usually shiny and will sparkle in the light.
- Crystals have usually have regular shapes like a square, rectangle or parallelogram.
- A Crystal is made of only one type of mineral but different minerals make different crystals.