Documents Rock review. pumice Name this igneous rock. Granite, cooled slowly intrusively Name this rock and...

Rock review Rock review pumice Name this igneous rock. Granite, cooled slowly intrusively Name this rock and identify how it was formed. extrusive This rock is obsidian,…

Documents Can a mineral scratch a mineral with a higher hardness number or a lower hardness number?

Can a mineral scratch a mineral with a higher hardness number or a lower hardness number? Lower number If a mineral is shiny, does that mean it is metallic or nonmetallic?…