What type of rock is this? How do you know?
Metamorphic -- it has bands
Using the materials provided, determine the hardness of the mineral provided. Explain your reasoning.
Between 3 and 5.5 because it scratched the copper plate so it must be harder than 3, but it didn't scratch the glass, so it is not as hard as 5.5
William found a cool mineral after the rainstorm. He conducted some tests on its properties and came up with the following data. Using his data and the known data for the given minerals, what mineral do you think William's stone is made up of? Explain your reasoning using his data as your evidence.
I think that William found fluorite because his mineral was glassy and only acrylic, fluorite, and glass have a luster of glassy. Also, his mineral was harder than copper just like fluorite and glass are harder than copper. Lastly, his mineral was softer than glass. Glass is not softer than glass, so the only mineral softer than glass yet harder than copper is fluorite.