| 21. | The granite here is anorthosite, and is similar in composition to rocks found in the mountains of the Moon.
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| 22. | Most anorthosite plutons are very recrystallized to form smaller crystals, leaving only the outline of the larger crystals behind.
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| 23. | The main rock type is anorthosite, which is more common on the Moon than on the surface of Earth.
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| 24. | The Nain anorthosite batholith is a large igneous plutonic rock complex that covers a large area of this part of Labrador.
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| 25. | From this, one of the main components of the highlands was theorized to be anorthosite, an aluminium-rich mineral.
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| 26. | This " alder ejecta " area is on spectrographic evidence instead principally anorthosite rock, typical of the lunar highlands.
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| 27. | Both the anorthosite and granite transect the Cheyenne belt in the Laramide Mountains, and intrude crystalline rocks of the Wyoming province.
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| 28. | Chemical analysis of the Genesis Rock indicated it is an anorthosite, composed mostly of a type of plagioclase feldspar known as anorthite.
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| 29. | In 1901 a prospector from Duluth misidentified the outcrops of anorthosite as corundum, an extremely hard mineral valuable as an industrial abrasive.
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| 30. | However, there is some question as to what name would best describe any occurrence of anorthosite together with the rock types mentioned above.
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