alloy
assay
basic material
chemical element
chemistry
co
cobalt
cobaltite
element
elemental
fine
geology
high purity
highly pure
industrial
industrial metal
industry
iron
isolated
lustrous
macro
manufacturing
material
metal
metallic
metalloid
mineral
mineral resources
mineralogy
mining
natural
nature
ore
periodic system
periodic table
pure
purity
rare
raw
raw material
rock
schneeberg
shiny
stone
sulfide
unprocessed
very pure
white background