7.7" Lustrous Binghamite Agate Slab - Minnesota

Lustrous Binghamite Agate Slab - Minnesota #299263

This is a beautiful slab 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.

Comes with an acrylic display stand.

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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