What three minerals make up most geodes?

Project help?





1.What three minerals make up most geodes?


2.How do geodes and nodules differ?


3.What minerals comprise the most rare geodes?


4.Name four states that contain high concentrations of geodes


5.What state is the geode the state rock?What three minerals make up most geodes?
1. quartz, amethyst and calcite


2. The only difference between a geode and a nodule is that a geode has a hollow cavity, and a nodule is solid.


3. sphalerite, aragonite, smythite, and millerite


4. California, Arizona, Utah and Nevada


5. Iowa