sliced open, a geode sometimes contains crystals. if there are crystals or other minerals inside of the geode those properties will add to those of the geode.
edges can be brown, cream, gray, or white and it can be dyed in many other colors
they can have quartz, calcite, citrine, agate, amethyst, chalcedony and a variety of other minerals inside which would add to the properties of the stone
helps us analyse the whole picture before making decisions
aids astral traveling
connects us with the higher plane and others that are of a spiritual mind as well.