What type of rock turns into a diamond?
I'm curious to know, which kind of rock undergoes a transformation to become a sparkling diamond? Diamonds, renowned for their hardness and allure, must originate from some specific geological source. Are they formed deep within the earth's crust, perhaps under immense heat and pressure? Or do they originate from a more accessible, surface-level rock type? Could it be igneous rocks, sedimentary rocks, or metamorphic rocks? Each type of rock has its unique characteristics and formation processes. Could you enlighten me on this intriguing transformation from rock to diamond?
How much diamond is in the mantle?
Excuse me, could you please elaborate on the quantity of diamond present within the mantle? I'm particularly interested in understanding the extent of diamond distribution and abundance in this geological layer. Could you provide any estimates or figures that might help me visualize the scale of this phenomenon? Additionally, I'm also curious as to the methods used to determine such measurements and whether there are any ongoing research efforts in this area. Thank you in advance for your insights and clarification.