Revision as of 19:25, 2 December 2024 by Admin(talk | contribs)(Created page with "{{ Ore | name=Colemanite | freq=common | hardness=4.5 | density=2.42 | chemf=CaB3O4(OH)3·H2O | ishydroxide=yes | m1=B | m2=Ca | oxide=B2O3 }} Colemanite, along with borax and kernite, is a primary ore of boron")