An amorphous phase is to be expected. Cristobalite could not be detected. The relative amounts Plate 1 Contact zone between the black coating and the porous sherd matrix. Sherd no. KP 1.6-3259/11. Bar = 40 pm. (facing page 202) Plate 2 Surface o f a b&ckcoating. Specimen no. KP 1.6-3268/2Bm = 20~rn.
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