4.1" Colorful Binghamite Agate Section - Minnesota

Colorful Binghamite Agate Section - Minnesota #299255

This is a beautiful section of binghamite that was collected from the Cuyuna Iron Range in Crow Wing County, Minnesota. It is polished to a mirror-finish on one side and features spots of chatoyant red and yellow coloration. There are also sections of iron and/or iron oxide that exhibit beautiful metallic luster. Pictures truly don't do this specimen justice.

One edge has been cut flat for angled presentation.

Binghamite, also known as "silkstone" or "cuyunite", is a highly sought after variety of agate that is only found near the Cuyuna iron range in Crow Wing County, Minnesota. It often displays vibrant red, orange, and yellow colors and in some cases contains small veins of iron running throughout the agate. Many specimens have chatoyant properties that are similar to tiger's eye. The chatoyance can be attributed to the fibrous hematite and goethite parallel crystal formations that the agate deposits around.

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