# Geode-like rock but it's empty inside. Why does this happen?

I found this geode-like rock (spheroidal shaped with empty spheroidal cavity inside) near Dickson Tennessee, USA. Comments suggest that this is in fact geode, but it is empty and featureless inside.

The white on the outer part is soft and can be flaked off.

1. Can this still be a geode? Assuming it is, why might this one be empty inside instead of being full of crystals?
2. Would this be indicative that most geodes in this area are likely to be empty as well, or would there be no correlation between one and another?

Click any image for full-size view, scale is in inches:

• It's a geode. You're unlucky, your geode is empty. Most have pretty quartz crystals inside and are worth a small sum. A few have amethyst or opal inside, and are worth a much larger sum. Where there is one there are usually more, so why not go back and see what you can find? You might be luckier next time. If there is a limestone cliff near were you found it, that might be the place to look , but they can occur in other types of rock. Usually the walls are thinner and the cavity larger. They are very variable in size, but yours is typical. – Michael Walsby Sep 4 '19 at 16:20
• Thank you so much, Michael!!! I was wondering if it might be a geode, but I had never seen one without the crystals... I will definitely go back and look for some more... :) – Kendra Sep 4 '19 at 17:01
• I've modified your question in order to remove the identification-request tag. That tag is being discontinued. Feel free to modify further, and welcome to Stack Exchange! – uhoh Sep 5 '19 at 7:41