Can lava melt diamonds?

Can Lava Melt Diamonds?

When it comes to the incredible heat produced by lava, one common myth is that it has the ability to melt even the toughest, most luxurious stones on the planet – diamonds. But can lava, or molten rock, indeed melt diamonds? To set the record straight, we’ll delve into the answer and explore some interesting insights along the way.

A Brief Primer on Diamond Chemistry

Before we jump into the topic, it’s essential to understand what a diamond is made of and its composition. A diamond is primarily made of carbon, crystallized under incredible pressure and temperature. These conditions are known for altering the chemical structure, yielding a rigid, compact mineral with remarkable properties – scratch resistance, extreme hardness, and high thermal conductivity, for example.

Diamond Melt Point

Did you know: A diamond can take temperatures up to approximately 4,500°C (7,200°F), when subjected to pressures beyond human comprehension (over 100 kilobars)?!

In short, the diamond melts not because of heat; but due to intense, massive pressure and external influence of the surroundings!

The Real Difference in Melt Point for Magma and Diamond
For a clearer perspective on their extreme temperatures, we’d first examine the lava flows as well as diamonds independently (see table below):

Difference in Melt Points Between Magma and Diamonds*

*Molten rock or lava in typical volcanic activity rarely, ever reaches such incredible pressure!

Comparison between molten rock (lava), typically seen in volcanic eruption) and diamonds reveals these findings:

  1. Typical lava flow: maximum reach 1200° C (2,200°F) due to rapid cooling in a high heat environment. Not the extraordinary heat and pressure capable in extreme circumstances! We don’t observe them at that 1502°F mark or such intensity**!

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