Josiah Spode is also often credited with developing a successful formula for fine bone china.
Whether this is true or not, his son, Josiah Spode II, was certainly responsible for the successful marketing of English bone china.
A mix of between 33 and 50 percent burnt animal bone, plus equal amounts of feldspar and quartz, yielded porcelain that was extremely white, strong, cheap to produce, and translucent.
This bone-ash, or soft-paste, porcelain soon spread to other British potteries, giving England the boost it needed to stay competitive in the international market.
In 1785, Spode began producing its line of blue-on-pearl china, which was to become its first success thanks to the skill of designer Thomas Minton in the early 1790s.
Spode’s pieces were distinctive for the depth and richness of their blue color—the pottery refined its own cobalt to achieve the effect.
Potteries had experimented with adding burnt animal bone to their porcelain for a few decades, but Spode II perfected the proportions of this mix between 17.Josiah Spode founded his Spode pottery around 1770 at Stroke-on-Trent in Staffordshire.Even before Spode arrived, this area was well known as “The Potteries,” one of Britain’s most important districts for the production of porcelain.The order in which patterns appear and are numbered in this exhibit is not necessarily the order in which Spode would have produced them..The production of these additional hot-press printed colors enabled Spode to expand its line of wares and, thus, grow market share. One method was to transfer print outline patterns and then paint in or between the lines of the pattern in other colors., by David Drakard and Paul Holdway, the Drakard/Holdway pattern number is referenced and the patterns appear in the same order as do Drakard/Holdway "P", or pattern numbers.