What is andradite garnet?
What is andradite garnet? Andradite (IMA symbol: Adr) is a mineral species of the garnet group. It is a nesosilicate, with formula Ca3Fe2Si3O12. Andradite includes three varieties: Melanite: Black in color, referred to as “titanian andradite”. Demantoid: Vivid green in color, one of the most valuable and rare stones in the gemological world. What does […]