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Tree Ring Obsidian Cast


Product Description

These specimens have impressions of the tree's bark or annual rings. These are actual casts of the trees that got buried in a volcanic eruption. In a few rare instances, you will actually find pieces of charcoal, which are remnants of the burned-out tree, making your specimen a combination fossil and rare igneous rock.

Demos and Labs: Fossil Profile: Pine Tree Ring Obsidian Cast

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