Discussion
A matt glaze differs from a glossy one in that its surface
Answer: A
Correct answer: contains fine crystals that scatter reflected light
A matt glaze crystallises during cooling, and the small crystals at the surface scatter the light that a glossy glaze would reflect specularly. It is a deliberate result, obtained by composition - high alumina, or magnesia, calcium or zinc - and by controlled slow cooling, since fast cooling suppresses the crystallisation and leaves the same glaze glossy.
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