Shares in African Rainbow Minerals (ARM) plunged on Monday as a 40% jump in half-year profit was overshadowed by its dividends and concern over production and sales prospects. Though higher ...
African Rainbow Minerals (ARM) has come out strongly in defence of its investment in Evolution Energy Minerals in Tanzania and refuted allegations that it, and its associated companies ...
rather than the mineral itself. As with other forms of obsidian, rainbow obsidian is both rock and glass. However, this isn’t the same kind of glass that’s used in your nice new French doors.