The mineral crystals in obsidian

  1. An unknown mineral specimen is not scratched by a penny and does not exhibit cleavage. The mineral is most likely to be:obsidian
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  2. Which statement reveals a property that can be used to identify a mineral?A mineral is found in Africa. A mineral is made in a
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  3. The mineral crystals in obsidian are too small to see without a microscope. This is because it _____.formed below the crust
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  4. Choose all the answers that apply.Extrusive igneous rocks _____. have large mineral crystals cool slowly have small mineral
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  5. While excavating a tunnel under Mexico's Naica Mountain, silver miners were stunned to discover a cavern full of luminous,
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  6. QuestionAn igneous rock forms quickly. Which characteristic could the rock have?(1 point) Responses small sand grains small sand
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  7. An igneous rock forms quickly. Which characteristic could the rock have?(1 point)Responses large mineral crystals large mineral
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  8. What determines whether a metamorphic rock is foliated or non-foliated?Responses the number of remaining gas molecules the
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  9. Use the table to answer the question. Mineral Hardness Cleavage/Fracture Luster Obsidian 5 Fracture Vitreous Halite 2.5 Cubic
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  10. Use the table to answer the question.Mineral Hardness Cleavage/Fracture Luster Obsidian 5 Fracture Vitreous Halite 2.5 Cubic
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