Kimberlite is an igneous rock and a rare variant of peridotite. It is most commonly known to be the main host matrix for diamonds.

Jan 20, 2024 · Kimberlite is a volcanic rock containing isolated pieces of rock or crystal that were pushed up out of the earth’s mantle by magma. Kimberlite can be identified by its fine-grain texture, its blue or yellow color, and/or the presence of diamonds and other gems in the rock.

Apr 23, 2023 · Kimberlite is an igneous rock that major source of diamonds. Kimberlite is a variety of peridotite. It is rich in mica minerals content and often in form of crystals of phlogopite. Other containt abundant minerals are chrome-diopside, olivine, and chromium- and pyrope-rich garnet.

Jan 4, 2023 · Kimberlite is a mysterious and fascinating rock that has captured the attention of geologists and gemologists for centuries. Find out what makes it so special, and learn about the various ways it's used in the diamond industry.

May 15, 2019 · Kimberlite is the name given to a silica-poor and magnesium-rich extrusive igneous rock (e.g., a volcanic rock) that contains major amounts of olivine, often serpentinized. It is a highly variable mixture of melt, minerals crystallizing …

Jul 17, 2023 · Kimberlite is a potassic to ultrapotassic ultramafic rock with inequigranular texture. It is a rare type of peridotite with many xenoliths and xenocrysts, including, on rare occasions, diamonds. For this reason, some authors refer to it as a complex hybrid rock.

A polymict megacryst-rich ultramafic volcanic breccia, consisting of major amounts of serpentinized olivine, with variable amounts of phlogopite, carbonate, garnet (e.g. pyrope), orthopyroxene, clinopyroxene, chromite and oxides. Commonly highly serpentinized and porphyritic, it occurs in vertical pipes, dikes, and sills.

Jun 25, 2013 · Kimberlite is a volcanic rock that occurs in diatremes, or narrow volcanic “pipes”. It may also occur in vertically oriented narrow sheets, or dikes. Once a kimberlite is found there is no guarantee that economic grades of diamonds, or …

Oct 16, 2015 · Kimberlite is an ultramafic rock derived from the mantle. Diamonds crystallize in the mantle well below the crust but they are carried up into the crust by the rising kimberlitic magma. Only 1% of kimberlite is economic and these are almost always found in or above Archean cratons.

Kimberlite is an igneous rock that originates from the Earth’s mantle. It forms when magma rises through the crust to erupt at surface level. This rock primarily contains minerals such as olivine, pyropes, and garnets, and it often traps diamonds as it ascends.