Hightown basalt dike with peperite textures, VA

Sample of the Eocene Hightown basalt dike (https://www.mindat.org/loc-263753.html; 38°25'46.0"N 79°37'00.0"W) from Highland County, Virginia. The dike contains numerous round nodules of brownish clay that I interpret to be mud formed during dike injection, hence this is a peperite (https://en.wikipedia.org/wiki/Peperite). Previously these have been described as amygdules (mineral infilled bubbles - https://en.wikipedia.org/wiki/Amygdule) but they don't contain typical amygdale minerals like zeolites, they are unusually large, irregular in shape, and there are few of them in the dike. There are more normal looking, smaller vesicles that are not infilled. The basalt is very fine-grained and the cooling joints are notably chaotic and blocky suggesting that they formed in the presence of (ground-) water. Some similar aged rocks nearby are indisputably volcanic, like the diatreme fill outside Monterrey, VA.