Workmen have found chunks of a green, glassy material while digging holes for basins to catch water and pollutants that will run off the new parking lot at Westminster Presbyterian Church. The lot is between 16th and 17th avenues along Hancock Street.
One idea is that the material is obsidian from the collection of someone who lived in a house that once was on the property, said co-pastor Beth Neel. Obsidian is a natural glass produced by the rapid cooling of viscous lava from volcanoes. It usually has sharp edges and must be cut with tools used on diamonds.
While most obsidian colors range from black to shades of brown, green obsidian is found from central Mexico through Guatemala, El Salvador, Honduras, Nicaragua and Costa Rica.
Does any Star News reader remember anything about a collection of green, glassy material, perhaps in a house, on the parking lot site? Or does anyone have another theory, or even a fact, about this discovered material?
The material, the pretty green of early spring, is one of the more aesthetic items to emerge from nearly three months of parking lot construction, expected to wrap up in Mid-November, said the Rev. Neel. The work, and consultation with city agencies regarding the new lot, have helped expand her vocabulary, she said.
“Bioswale,” she said, revealing her new knowledge of landscape elements designed to remove pollutants from surface runoff water. “Things I never learned in seminary.”