BLINDE, among mineralists, a species of lead-marcasite, by our miners called mock-ore, mock-lead, and wild lead, &c. The German mineralists call it blende, whence our denomination blinde. It answers to what in Agricola is called Galena inanis.
It usually lies immediately over the veins of lead-ore, in the mines which produce it, for it is not found in all. When the miners see this, they know the vein of ore is very near.