Последние добавленные видео:
biotite
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2 years ago
839 2 years ago 6:22What is biotite? What are the features of biotite? How is biotite formed?
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3 years ago
13516 3 years ago 4:35Biotite tutorial Optical mineralogy
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3 years ago
1681 3 years ago 8:18Rock of the Week #2: BIOTITE
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11 months ago
84 11 months ago 5:36Biotite Unveiled: Discover the Dark Wonder - Mineral Magic
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1 year ago
184 1 year ago 3:09Biotite: Exploring the Mysterious Beauty of the Shimmering Black Mineral
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10 months ago
260 10 months ago 2:25Biotite
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7 years ago
2406 7 years ago 2:31Interesting Biotite Facts
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4 years ago
44 4 years ago 3:00Biotite & Muscovite
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4 years ago
10192 4 years ago 10:17Minerals : Phyllosilicates - Biotite, Muscovite, Lepidolite, Chlorite