31. There are also smaller kimberlite bodies which are found in 1 2 ha areas. 32. Kimberlite is a diamond-bearing blue ground that sits below a yellow colored soil.33. See Fort ?la Corne kimberlite field. 34. The Finsch mine is a traditional diamantiferous kimberlite pipe, extending around 17.9ha. 35. The reworked kimberlite is well sorted, distinctly bedded, and contains abraded olivine grains. 36. Kimberlite tuffs are also found, a rare species which is very susceptible to erosion.37. Instead, De Beers would be looking for underground deposits of kimberlite diamonds in the area. 38. The only other kimberlite operation in Angola is the Catoca mine, also in the northeast. 39. It is this depth of melting and generation which makes kimberlites prone to hosting diamond xenocrysts. 40. Peridotite nodules with irregular equigranular textures are often found in alkaline basalts and in kimberlite pipes.
