The MN State gem: Beautiful Lake Superior Agates - found on both north (MN) and south (WI) shores of Lake Superior. - Agates are semi precious stones so common on Lake Superior beaches no one pays much attention. #MSPdestination

The MN State gem: Beautiful Lake Superior Agates - found on both north (MN) and south (WI) shores of Lake Superior. - Agates are semi precious stones so common on Lake Superior beaches no one pays much attention. #MSPdestination

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Search for Lake Superior agates in surrounding areas with many pebbles and rocks.

Search for Lake Superior agates in surrounding areas with many pebbles and rocks.

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The Lake Superior agate is a type of agate stained by iron and found on the shores of Lake Superior.   Agates were formed during lava eruptions that occurred in the midwest region about a billion years ago. The stone’s predominant red color comes from iron, a major industrial mineral found extensively throughout the Iron Range region.

The Lake Superior agate is a type of agate stained by iron and found on the shores of Lake Superior. Agates were formed during lava eruptions that occurred in the midwest region about a billion years ago. The stone’s predominant red color comes from iron, a major industrial mineral found extensively throughout the Iron Range region.

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North Country gold: How and where to find Lake Superior agates | Star Tribune -photo by Julie Long

North Country gold: How and where to find Lake Superior agates | Star Tribune -photo by Julie Long

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