RxCaliber8 RxCaliber8
  • 29-03-2018
  • Biology
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why does obsidian and igneous rock appear smooth and glassy

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live4dramaoy0yf9
live4dramaoy0yf9 live4dramaoy0yf9
  • 29-03-2018
The answer is because its crystal cools quickly. Obsidian rock usually forms when cooling happens instantly.

Hope this helps!!
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