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Sapphires form inside volcanoes, not deep in the mantle
How It Works UK
|Issue 194
Brilliant-blue sapphires look like bits of sky brought down to Earth, but a new study finds these gemstones are from a different boundary: the one between the planet's crust and magma welling up from the mantle, Earth's middle layer. Sapphires have been thought to form in the mantle itself or in the lower sections of the crust.

But the latest research finds that, instead, sapphires are born higher in the crust, in the hearts of volcanoes where magma rises to only about three miles below the surface. "We can pinpoint this region as the 'crucible' where sapphire formed," said Axel Schmitt, a geologist at Curtin University in Australia, who conducted the work while at Heidelberg University in Germany.
यह कहानी How It Works UK के Issue 194 संस्करण से ली गई है।
हजारों चुनिंदा प्रीमियम कहानियों और 10,000 से अधिक पत्रिकाओं और समाचार पत्रों तक पहुंचने के लिए मैगज़्टर गोल्ड की सदस्यता लें।
क्या आप पहले से ही ग्राहक हैं? साइन इन करें
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