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minerals

Focused short video answers connected to minerals within Earth Sciences.

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Discover how much quartz exists on Earth and its significance as one of the most abundant minerals in the Earth's crust.

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Discover the 3 main characteristics of obsidian: volcanic glass formation, glassy luster, and sharp edges ideal for cutting tools.

Learn what a depositional system in geology is, including sediment environments and their role in forming rocks like sandstone and shale.

Discover how to identify real obsidian by its glossy, jet-black appearance, sharp edges, and unique fracture patterns.

Learn key differences between black obsidian and black tourmaline, their textures, and properties for accurate identification and use.

Learn about the typical colors of asbestos rock and the distinct hues of common asbestos types like chrysotile, amosite, and crocidolite.

Discover how heat and pressure can change igneous and sedimentary rocks into metamorphic rocks.

Discover the truth about gold production on Earth. Learn why gold isn't being made today and its origins from cosmic events.