crystals

There are many types of crystals.My favorite type is Sapphire.Some types of crystals are called
diamonds, ruby,garnet,emerald,montana and topaz.There are lots more but that would take
all day to list.You can find crystals almost anywhere.The people that dig them up are called Geologists.
When I grow up I want to be a geologist.They can work in caves, mountains and some times under
water.I think under water would be dangerous.
This link shows many kinds of crystals!
http://www.yuliyacarrjewellery.co.uk/images/Swarovski_crystal_chart.jpg