Lake Superior agate

Lake Superior Agate from the Lake Superior region in Northern Minnesota.

The Lake Superior agate is a type of agate stained by iron and found on the shores of Lake Superior. Its wide distribution and iron-rich bands of color reflect the gemstone's geologic history in Minnesota. In 1969 the Lake Superior agate was picked by the Minnesota Legislature as the official state gemstone.

Lake Superior Agate Media

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  Lake Superior Agate - Duluth, Minnesota

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  A cabochon of Lake Superior agate

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  Lake Superior Agate set in 14k gold

References

• Minnesota's State Gem: The Lake Superior Agate