Geode Rocks With Crystals In Them

The crystals are formed by the filling of vesicles in volcanic and sub volcanic rocks by minerals deposited from hydrothermal.
Geode rocks with crystals in them. The geode at the left and the one at the top of the page are both dugways from utah. Geodes derived from the greek word γεώδης meaning earth like are geological secondary formations within sedimentary and volcanic rocks geodes are hollow vaguely spherical rocks in which masses of mineral matter which may include crystals are secluded. And depending on the minerals that make up the geode different geodes will contain different kinds of crystals such as amethyst agate and quartz. A geode is a round rock which contains a hollow cavity lined with crystals.
All geodes are not created equal the first one is quite hollow but for a nice layer of medium sized blue crystals. The colors come from the different minerals that flowed through the bubble so many millions of years ago. They are delighted and amazed that an uninteresting rock can contain a beautiful cluster of gemmy crystals or a colorful lining of banded agate or both of those in the same cavity. These dugway geodes have bands of blue and pink.
Simply speaking geodes are hollow rocks that contain an insanely beautiful array of crystal formations inside. The only difference between a geode and a nodule is that a geode has a hollow cavity and a nodule is solid. Most geologists enjoy geodes. They are typically formed when air bubbles inside of volcanic rock form hollow cavities.
However the general public has a love affair with them. Geodes are rounded hollow voids in rocks filled with crystals and other minerals. The public s love affair with geodes.