Height 5 inches. Perfect for dried or fresh flowers.This lovely little vase is in a teardrop design.
Copper belongs to a group of metals known as the Nobel Metals.
Copper ruby glazes were first perfected in china during the Sung Dynasty and have been highly prized in history. This ancient glaze is probably the most difficult colour to achieve in all of ceramics. The Sung Dynasty was a ruling dynasty in China between 960 and 1279 A.D.
To achieve this glaze requires an exacting chemical composition as well as a carbon rich flame at just the right temperature.
At this temperature the copper in the glaze will have an available oxygen molecule. The excess carbon in the kiln atmosphere is hungry for oxygen and will rob it from the copper turning it from copper oxide (green in colour) to the metallic form which is red.
The beautiful colour found in glazes containing noble metal crystals is mainly produced by the absorption of light by the metal crystals. Big crystals scatter enough light to make the glaze appear opaque in reflected light and (densely) colored in transmitted light. We almost always look at, rather than through glazes, so it is the reflected results which matter most to us.