How Does Kimberlite Look?

Kimberlite, also called blue ground, a dark-coloured, heavy, often altered and brecciated (fragmented), intrusive igneous rock that contains diamonds in its rock matrix. It has a porphyritic texture, with large, often rounded crystals (phenocrysts) surrounded by a fine-grained matrix (groundmass).

What is an example of kimberlite?

Kimberlite is a type of igneous rock. Olivine is the most abundant mineral found in kimberlite but other minerals that may be found in kimberlite include phlogopite, mica, diopside, and calcite. Much of the diamonds presently mined come from kimberlite ores.

Where can I find kimberlite rock?

Kimberlite is typically found in pipes – structures with vertical edges that are roughly circular in cross-section. The rock may have been injected into the areas of weakness in the mantle.