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Minnesota State Gemstone:
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Minnesota designated Lake Superior agate as the official state gemstone in 1969. An unusually beautiful quartz stone banded with rich red and orange colors (derived from iron ore in the soil), Lake Superior agates were dispersed by glaciers in the last Ice Age. Found in northeastern and north central Minnesota, most Lake Superior agates are pea-size but some are as big as bowling balls and weigh over 20 pounds. |
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Source: |
State Gemstone: Minnesota Secretary of State |
Links: |
Geological Symbols - 50 States |
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Great gifts for teachers - travelers - students!
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State Symbols USA is a nonprofit organization promoting
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