It tarnishes in a day or two, even in dry air, and in contact with moist air it breaks up like ordinary lime.
It tarnishes more easily and inflames less easily than cerium.
Such a man ought to be cautious how he tarnishes his lineage with unjust or ungenerous sentiments.
Exposed to the air, it tarnishes rapidly, a straw-coloured oxide making its appearance on the surface.
It ...
