Ballard Quarry, Worcester, Worcester County, Massachusetts, USA

Crystals to 2 mm. Labeled: Chabazite var. Haydenite. JC Rand 1908. Harvard Mineralogical Museum collection.

© 2014 Peter Cristofono

Map showing location of Ballard Granite Quarry location in 1896, which is today accessible by a public pathway. Another pit is visible in a 1938 aerial photo. That pit is also marked on this map, and is now part of a composting facility. Comparing the two views is a bit confusing, as streets have since been renamed and/or disappeared, and an ...

Circa 1917 USGS photo showing "Aplite Border at the Contact of the Ayer Granite and the 'Bolton' Gneiss in the Ballard Quarry, Worcester, Mass. "