Minnesota Rock Identification

How would you describe the texture of your rock?
My rock is made of tightly fit grains.
My rock contains bigger crystals within the rock.
My rock seems to contain multiple components compounded together, rough.
My rock is made of multiple smooth layers.
The rock comes in standard crystal form.
My rock has a glassy texture.
What is the dominant color of your rock?
Black
Brown
White
Red
Grey
Sandy
Beige
Does your rock have any other colors?
Black
Brown
Green
White
Red
None
Grey
Does your rock have any noticeable features?
Other chunks of rock are contained within the main stone.
The rock is banded.
The rock has many porous bubbles.
There are "eyes" on the rock.
None of the above.
Where did you find your rock?
Duluth Complex
Red River Valley
Central Minnesota
Southeastern Minnesota
Cuyuna Range
Twin Cities Area
N/A
What type of rock is it?
Igneous
Sedimentary
Metamorphic
N/A
What form was your rock found in?
Crystal
Rock
Both
Metal
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