Hello everyone, I discovered this awesome find in a dry river bed near Faribault Minnesota. I believe there are three possibilities for what this rock is. I believe it is either a large agate, banded jasper, or a banded iron formation. What else could this mystery rock be?
I’m new to this online community and am looking forward to hearing your opinions and contributing my own ideas to help others. I appreciate your help and responses.
Description of rock
Colors: white, gray, maroon, orange,
Weight 5lbs 7.8 ounces
Dimensions: 6 inches x 4.5 inches
Hardness: Knife blade will not scratch dark maroon area but will scratch course rusty red area
Mineral composition: quartz , hematite, limonite,
Fracture : conchoidal
Texture: banding in quartz and micro banding in red layers
I’m new to this online community and am looking forward to hearing your opinions and contributing my own ideas to help others. I appreciate your help and responses.
Description of rock
Colors: white, gray, maroon, orange,
Weight 5lbs 7.8 ounces
Dimensions: 6 inches x 4.5 inches
Hardness: Knife blade will not scratch dark maroon area but will scratch course rusty red area
Mineral composition: quartz , hematite, limonite,
Fracture : conchoidal
Texture: banding in quartz and micro banding in red layers
Attachments
Last edited:
