Cobalt Glaze

Cobalt

Cobalt is a chemical element; it has symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, somewhat brittle, gray metal.

Cobalt blue

Cobalt blue is a blue pigment consisting principally of cobalt(II) aluminate, CoAl2O4, made by sintering cobalt(II) oxide with aluminium(III) oxide (alumina) at high temperatures. It is used as a ceramic color, in automotive and industrial coatings, in scientific and medical imaging, and as a fine-art pigment. Its thermostability, chemical inertness, and lightfastness make it suitable for applications requiring a durable blue color.

cobalt

Noun

1. A chemical element (symbol Co) with an atomic number of 27: a hard, lustrous, silver-gray metal.
2. Cobalt blue.

glaze

Noun

1. The vitreous coating of pottery or porcelain; anything used as a coating or color in glazing.
2. A transparent or semi-transparent layer of paint.

Verb

1. To install windows.
2. To apply a thin, transparent layer of coating.