Buckmanite Samples

Buckmanite, or Buckman Slate, is a metamorphic substance endemic to many urban environments, but first identified in the Buckman neighborhood of Portland, Oregon. It is a composite material formed when plastic municipal containers undergo rapid exothermic reactions, deforming to bond with the surrounding environment.

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Octothorpes
buckmanite Buckman
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Last updated on January 16, 2026