vredenburgite

\\ˈvred^ənˌbərˌgīt\ noun (-s)

Etymology: Vredenburg, Alabama + English -ite

1. : a mineral consisting of an oriented intergrowth of jacobsite and hausmannite — called also beta-vredenburgite

2. : a homogeneous mineral (Mn,Fe)₃O₄ that has the same composition as beta-vredenburgite, is stable at high temperature, and in rare instances is preserved in a metastable state at ordinary temperature — called also alpha-vredenburgite