Последние добавленные видео:
silimanite
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4 years ago
6766 4 years ago 4:19Sillimanite tutorial Optical mineralogy
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2 years ago
809 2 years ago 4:43What is sillimanite? How is sillimanite formed?
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3 years ago
715 3 years ago 4:33Top countries by sillimanite minerals production (1970-2018)
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4 years ago
5488 4 years ago 7:49Mineral Identification : Sillimanite and Kyanite
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2 years ago
840 2 years ago 1:03Identifying Sillimanite
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1 year ago
37 1 year ago 1:28Unearthed Secrets: Sillimanite’s Mesmerizing Journey!
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10 months ago
1196 10 months ago 2:29Speaking of Stones. The Journey of Stones: Fibrolite to Sillimanite
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1 year ago
171 1 year ago 2:50Speaking of stones. Sillimanite vs Mullite showdown.