Toothbrushes and toothpastes usually consist of mica (it provides sparkles), limestone (it rubs away plaque), and plastic
Question:
Toothbrushes and toothpastes usually consist of mica (it provides sparkles), limestone (it rubs away plaque), and plastic (it forms the handle and bristles). Which of these ingredients is a mineral? Which is a rock? Which is neither rock nor mineral?
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Mica is a miner...View the full answer
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Related Book For 
Conceptual Integrated Science
ISBN: 9780321818508
2nd Edition
Authors: Paul G Hewitt, Suzanne A Lyons
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