| 1 | When the disk warms from the star's outburst, the amorphous particles of silicate melt. | |
| 2 | The ethyl groups replace oxygen in the silicate ion chains, creating a solid but crumbly silicone polymer. | |
| 3 | He says proving the presence of phyllosilicates in a protoplanetary disk is a challenge. | |
| 4 | The dip, he says, was triggered by a burst of volcanic activity that deposited new silicate rocks. | |
| 5 | Scratchy materials, including calcium carbonate and silicates, help remove food, bacteria, and some stains from your teeth. |
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