Where do agates come from?

Over the years talking to people about collecting and tumbling agates from the oregon beach it turns out I have never talked to a person that knows where they came from. Agate is silicon dioxide that can fill any void or crack in rock. Agate can be big sheets or masses but people only see the rounded type polished agates.

• #education
• #agates
• #oregon_beach
• #tourist_destination
• #geology