Recent Examples of kimberlite from the Web
Kimberlites are volcanic eruptions that bring material from the depths where diamonds can form.
Most kimberlites are old, too, forming from the Proterozoic (between 541 million and 2.5 billion years ago) up to the Cretaceous (79-145 million years ago).
Many diamonds are embedded in a dense volcanic rock called kimberlite, which gets its name from the town of Kimberley, South Africa, where several of the world’s first diamond mines were discovered.
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