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New magma rising underneath Mount St. Helens
By: John Atchison
Not many people want to consider the end of the world. While there are scientists and prophets of doom who believe the end is near, the majority of people on the Earth think what is going on is just the natural order of things. No...
What are champagne diamonds and where do they come from
By: Erika Frensley
What do you do when the majority of diamonds that you find in your mine are large, clear, and brown? You use the best and most beautiful of them as high quality gemstones, and sell them as champagne and cognac diamonds. These lovely diamonds are...
What are pink diamonds and what is their origin
By: Erika Frensley
Pink diamonds are among the rarest of diamonds, only produced from a few mines in the world. The majority of pink diamonds come from mines in India, but some also come from mines in South Africa, Brazil, and the Argyle mine in northwestern Australia. The...
The facts about yellow diamonds
By: Erika Frensley
For centuries prized diamonds have either been pure white or deeply colored blue, red, pink, or green or yellow. Pale yellow diamonds have been seen mainly as inferior white diamonds. While yellow diamonds can be manufactured and thus are much more affordable, naturally-occurring yellow diamonds...
The truth about Mount Everest being the world's highest mountain
By: Erika Frensley
At 8,848 meters (29,029 feet) high, Mount Everest has always been heralded as the world's highest mountain. But is that really true? It depends on exactly what you are measuring.You can measure the summit of a mountain by either the elevation above...
Iceland's 30 volcanoes
By: james alan smith
The country of Iceland is one of the most volcanically active pieces of real estate on the planet and is a godsend for any volcanologists, perched atop the mid-ocean ridge fault line (a divergent tectonic plate boundary between the American and Eurasian plates) this small...
Iceland's 30 volcanoes
By: Shannon Farlouis
Because Iceland is located on the mid-Atlantic Ridge, there is a high concentration of active volcanoes. On the island is 30 active volcanic systems, but only 13 of them have erupted since the settlement of Iceland. The most active of these volcanoes is Grimsvotn. Craters...
Paricutin: The birth and death of a volcano
By: Shelly Barclay
Paricutin is a volcano that emerged in a cornfield in the village of Paricutin, Mexico in 1943. The volcano grew to its full height in less than ten years from the time of its birth from a small fissure in the ground. It became extinct...
Joys and perils of Siberia's diamond mines
By: Jillian Jacobs
The De Beers have long been known as the heirs to the incredibly lucrative diamond cartel, but what is less known is how the De Beers now have a rival for those riches: Russia. With the discovery of diamond pipes in Siberia by a young...
Igneous rocks: Rhyolite
By: Hai Shunxi
Rhyolite is the name applied to a subset of the igneous rocks, those rocks formed by cooling from molten magma. Earth scientists separate igneous rocks based on the minerals that are present and the size of the mineral crystals. Rhyolite (rhymes with "WHY-oh-light") is an...

 

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