The Earliest Chinese Proto-Porcelain Excavated from Kiln Sites: An Elemental Analysis.

PLoS One · 2015 · PMC4633156 · PMID 26535583

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a decreasing trendno p-value reported

In Table 3 , the historical development of proto-porcelain glazes is highlighted by an increasing utilisation of calcium oxide (from 6.00 wt% to 17.70 wt%) and a decreasing trend for potassium oxide (from 3.37 wt% to 1.79 wt%), correspondingly and simultaneously.

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