a volcanic glass full of cavities and very low in density that is used especially in powder form for smoothing and polishing

a volcanic glass full of cavities and very low in density that is used especially in powder form for smoothing and polishing
Crossword Clue
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Answer	Crossword Clue
pumices	a volcanic glass full of cavities and very low in density that is used especially in powder form for smoothing and polishing

Crossword

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a volcanic glass full of cavities and very low in density that is used especially in powder form for smoothing and polishingCrossword Clue