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A Brief Introduction to Minerals

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작성자 Mike Sammartano 작성일13-01-11 00:00 조회9회 댓글0건

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An introduction to what exactly minerals are and what must be true for a substance to be considered a mineral.

I recently updated this video, along with a few other new mineral videos - check them out now!
https://www.youtube.com/playlist?list...

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