Dickinson Avocado This page first published: Feb 1, 2004 · Updated: Jun 16, 2018 · by CooksInfo. Copyright © 2021 · This post may contain affiliate links · This blog generates income via ads · The Dickinson Avocado has rough, medium-thick skin that is often described as almost pebbly. The black coloured skin does not peel easily. The flesh is a light green, and the stone inside is small compared to other avocados. It is a hybrid derived from the Guatemalan type of avocados.