Use the table to answer the question.
Mineral
Hardness
Cleavage/Fracture
Luster
Obsidian
5
Fracture
Vitreous
Halite
2.5
Cubic cleavage
Vitreous
Fluorite
4
Octohedral
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