Fluorite has cleavage.
Halite has cleavage.
Obsidian is about 5.5 or so on the Mohs scale while a penny is about 3; therefore, a penny will not scratch obsidian.
An unknown mineral specimen is not scratched by a penny and does not exhibit cleavage. The mineral is most likely to be:
obsidian
halite
fluorite
I think it's either obsidian or fluorite!
5 answers
thank you!
Can I have all the answers w explanations plz?!
or just do the work yourself smh
daammm "Help" i feel u tho :(
1 answer