Blue Lace Geode

What is a Geode?

What is a Geode? – A geode is a rock containing a crystal-lined cavity or another type of mineral matter; when a geode is opened, you’ll see agate, quartz, amethyst or other minerals. The exterior of a geode looks bumpy and might resemble the head of cauliflower. A nodule is a geode that is full of minerals, but it’s not …