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PTE Essay Topics and Answers List by CELL IELTS is a document available to read on EtoBox.

The text discusses the origins and properties of rare "black diamonds" known as carbonados. A new study suggests that their unusual bubbly structure and hydrogen composition means they likely formed in space and were delivered to Earth via asteroid impacts billions of years ago. The diamonds are found in deposits in Brazil and Central Africa that match the locations of ancient

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CELL IELTS

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EN