Meanings of calx in English

It cannot be doubted that lime (coctilis calx), which is snow-white and lighter than sponge, is useful for the mightiest buildings.

In this connection Lavoisier says: We have, therefore, laid aside the expression metallic calx altogether, and have substituted in its place the word oxide.

From the melted ore, in this subterranean region of infernal aspect, is produced a calx, or cinder, of which there is an enormous mountain.