kimberlite

How To Use kimberlite In A Sentence

• Some of the characteristic minerals found in kimberlite are olivine, pyrope garnet, enstatite, diopside, ilmenite, phlogopite, perovskite, magnetite, and spinel.
• Unlike kimberlite deposits, which are deep underground, they are quite easy to mine, using artisanal or semi-industrial methods.
• Kimberlite pipes are created when magma bubbles up through a craton, expanding and cooling on its way up. How a Rogue Geologist Discovered a Diamond Trove in the Canadian Arctic
• AK6 is a trilobate kimberlite consisting of a North, Centre and South Lobe. Marketwire - Breaking News Releases
• In the first case diamonds are extracted from the diamantiferous chimneys of the ancient volcanoes, made up of kimberlite, or blue rock.
• More recently, modern exploration has resulted in the reported identification of uneconomic though diamondiferous kimberlites in Iron and Dickinson Counties in northern Michigan.
• Other minerals from the State Line kimberlite pipes have gem potential; these include pyrope and chrome diopside.
• The results from exploration by the company since project commencement during mid 1999 are considered to be very encouraging for the discovery of diamondiferous kimberlite source rocks.
• With two thirds of the country covered with the craton-type soil, in which the kimberlite stone which bears diamonds can be found, there has been a steady increase in diamond prospecting. ANC Daily News Briefing
• Diamond is obtained from volcanic pipes composed of kimberlite or lamproite, rocks that are found only in cratons, very old stable areas of the Earth's crust.