لا توجد دقة أعلى متوفرة.
Quartzite_2_jpg.jpg (360 × 307 بكسل، حجم الملف: 35 كيلوبايت، نوع الملف: image/jpeg)
Cuarcita, roca metamórfica.
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This image is a work of the "Minerals in Your World" project, a cooperative effort between the United States Geological Survey and the Mineral Information Institute. The images were featured in the "Minerals and Materials Photo Gallery" on the website of the U.S House Subcommittee on Energy and Natural Resources. As a work of the U.S. federal government, the image is in the public domain. |
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