A geode is a rock with a special surprise in its interior. On its exterior, a geode looks like a bare rounded rock, with nothing to draw attention to. When it is opened, however, it reveals a center full of colored crystals.
Geodes are typically agates. Agates are very common stones, and usually do not seek a high price, but are beautiful to look at. Geodes, in particular, can be quite incredible because they are like tiny miniature caves. From the outside, they look like simple, rough stones. But when you open them, you can see concentric bands of color around a hollow interior. Often this interior is packed with miniature crystals.
The absurd and non-exceptional outer surface of a geode is part of what makes one of these emotions discover. A geode usually looks like any other rock. This makes it challenging to identify one in the field.
There are geodes worldwide but are most commonly located in deserts, beds of volcanic ash and areas rich in limestone. It is also common to find them in the beds of the lake and the rivers.