|
Title: Two unknown minerals are placed before you for identification. You decide to tes Post by: barry on Aug 31, 2013 Two unknown minerals are placed before you for identification. You decide to test each mineral's hardness. Mineral A will scratch a piece of glass. Mineral B will not. Which mineral is harder? (You should mention hardness according to Moh's Hardness Scale in your answer.)
Title: Re: Two unknown minerals are placed before you for identification. You decide to tes Post by: savio on Sep 1, 2013 Content hidden
Title: Re: Two unknown minerals are placed before you for identification. You decide to tes Post by: barry on Sep 1, 2013 Marking this solved.
|