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Banded or cloudy form of chalcedony that forms in rock cavities, commonly used as a gemstone and in making in pestles and mortars (5)

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catharguy | 23:01 Mon 25th Oct 2010 | Quizzes & Puzzles
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Banded or cloudy form of chalcedony that forms in rock cavities, commonly used as a gemstone and in making in pestles and mortars (5)
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Banded or cloudy form of chalcedony that forms in rock cavities, commonly used as a gemstone and in making in pestles and mortars (5)

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