Use the table to answer the question. Mineral Hardness Cleavage/Fracture Luster Obsidian 5 Fracture Vitreous Halite 2.5 Cubic cleavage Vitreous Fluorite 4 Octahedral Vitreous An unknown mineral specimen is not scratched by a penny and does not exhibit cleavage. The mineral is most likely to be: (1 point) Responses obsidian obsidian halite halite fluorite
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The correct answer is obsidian. Obsidian has a hardness of 5 and exhibits fracture, while both halite and fluorite have a lower hardness and exhibit cleavage.
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