Sounds like you’re dealing with a classic basaltic ore—high iron, lots of magnetite, maybe a splash of nickel or cobalt if it’s from a good magma source. Watch out for some silica and sulfur, they’ll make the metal a bit flaky, but that can actually help with forging if you’re careful with the heat treatment. Keep an eye on the slag, and you’ll get a blade that’s both strong and a little mystic.