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What is a craton and what is a kimberlite pipe and how are they linked to the discovery of the diamond?
A craton is 'an old and stable part of the lithosphere' -- the earth's crust. One class of inclusions in the formation of the earth's crust when subductions of crust were folded into the deep, kimberlite diamond areas that lie about 150-450 K below the surface. Diamonds as we know them are exploded to the earth's surface through kimberlite pipes, which are carrot shaped and widest at the surface. Although not all kimberlite pipes are sources for diamonds, most diamonds are found in areas where kimberlite pipes occur.
Why are diamonds found in kimberlite rock?
Apparently kimberlite pipes -- that can contain diamonds -- are volcanic formations that begin deep within the earth's mantle. Because diamonds and kimberlite -- and other semi-precious gems -- are formed in similar locations, some kimberlite rock contains diamonds. You can read more, below.
What color is kimberlite?
Nonoxizied Kimberlite is called Blue Ground, due to the blue color..Oxizdized Kimberlite is called Yellow ground due to the yellow color. It is a deep Tawny Yellow.
Which valuable mineral is often found in the rock called kimberlite?
The valuable mineral often found in kimberlite is diamond. Kimberlite is an igneous rock that forms deep within the Earth's mantle and is known for transporting diamonds to the surface during volcanic eruptions. Diamonds extracted from kimberlite deposits are highly sought after for their beauty and industrial applications.
Are there any precious stones that come out of a volcanoes?
Some volcanoes, including Hawaii, occasionally produce sands which are composed of transparent green grains of the gemstone, peridot. On the Big Island, the sands mostly appear black except on a beach near the southernmost tip of the island.
What diamonds are in volcanoes?
Diamonds found in volcanoes are typically formed deep within the Earth's mantle under high pressure and temperature conditions. They are brought to the surface during volcanic eruptions through volcanic pipes called kimberlite pipes or lamproite pipes. These diamonds are known as "kimberlite diamonds" or "volcanic diamonds".
African diamonds are contained in what?
All diamonds are erupted to the earth surface together with indicator minerals, including kimberlite. Other minerals are present in fertile kimberlite -- containing diamonds -- and absent in sterile kimberlite.
Are volcano's mountains?
Not all volcanoes are mountains though most do form mountains. Some volcanoes form as simple fissures in the ground. There is a so-called supervolcano in Yellowstone that, does not take the form of a mountain. Kimberlite volcanoes also erupt too violently to form mountains.
Does kimberlite exist in natural blue quartz crystal?
No. Kimberlite is an igneous rock best known for sometimes containing diamonds. it contains no quartz crystals at all.
Where is kimberlite locations?
Kimberlite rocks are typically found in regions with ancient cratons, such as Africa, Canada, Russia, and Australia. These rocks are known for their diamond-bearing potential and are often associated with volcanic activity. Mining companies often search for kimberlite deposits as they can indicate the presence of diamonds.
How do kimberlite pipes and diamonds form?
Kimberlite pipes form when magma rises from deep within the Earth's mantle and rapidly reaches the surface, carrying diamonds and other minerals with it. The extreme pressure and temperature inside the mantle crystalize carbon atoms into diamonds within the kimberlite magma. When the kimberlite erupts onto the surface, it brings diamonds along, creating diamond deposits.
Does kimberlite react to acid?
Yes, kimberlite does react to acid. The carbonate minerals in kimberlite can fizz or effervesce when they come into contact with acid, indicating a chemical reaction. This reaction is due to the dissolution of the carbonate minerals in the kimberlite by the acid.
Are most most diamonds formed inside kimberlite?
All diamonds are formed from carbon. Kimberlite and diamonds are both erupted to the earth's surface via volcanic pipes. Kimberlite is an indicator mineral, increasing odds for geologists that a volcanic pipe includes diamonds: not all pipes erupt diamonds with kimberlite. Kimberlite can be considered a 'neighbor' or 'kin' of diamond, but not a source.
What is a craton and what is a kimberlite pipe and how are they linked to the discovery of the diamond?
A craton is 'an old and stable part of the lithosphere' -- the earth's crust. One class of inclusions in the formation of the earth's crust when subductions of crust were folded into the deep, kimberlite diamond areas that lie about 150-450 K below the surface. Diamonds as we know them are exploded to the earth's surface through kimberlite pipes, which are carrot shaped and widest at the surface. Although not all kimberlite pipes are sources for diamonds, most diamonds are found in areas where kimberlite pipes occur.
Where is kimberlite found?
Kimberlite is typically found in regions with ancient volcanic activity, such as cratons and continental lithosphere. Some common locations include southern Africa, Canada, Australia, and Russia. These regions have preserved the deep mantle source rocks that give rise to kimberlite.
How much kimberlite ore does it take to make 1 carat diamond?
Kimberlite is an indicator mineral for diamond, not the genesis of diamond, which is carbon. Individual diamond mines have varying ratios of kimberlite to diamond.
Are kimberlite rocks used for human purpose?
Kimberlite is the main ore of diamonds, but otherwise has little use to humans.
