Home / Explore / Minerals / Hungchaoite Minerals Hungchaoite hungchaoite Mg(B4O7) * 9H2O Hungchaoite — Mineral Guide — MineralFYI — via mineralfyi.com · Source Overview Hungchaoite is a mineral species (borate mineral). It crystallises in the triclinic system. Nickel–Strunz class: 6.DA.20. Scientific references Hungchaoite — Wikidata. https://www.wikidata.org/wiki/Q3787626 Link