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Posts tagged 'Peachstone'

Madagascar Peach Stone

1 years ago 964 Views

Madagascar Peach stone is a type of feldspar called orthoclase, which makes up much of the Earth’s crust. It forms as magma cools and then crystallizes into igneous rock--granite, for example. The pink crystals can be tiny—less than a few millimeters, but they are especially large and easily seen when found in another rock called pegmatite. A gigantic crystal found in a pegmatite rock in the mountains of Russia measured 30 feet long and weighed 100 tons! Orthoclase has been found within some rocks on Mars and on the moon.