1. 1.It’s streak is black,green. 2.It’s cleavage planes make a square shape..

3. 1.it’s streak black. 2.It’s nickname is fool’s gold.

5. 1.It’s color is silver gray. 2. It’s streak is gray to black.

7. 1.it’s streak is yellow to brown. 2.look like rust.

9. 1.Light green to white. 2. It is flaky

11. 1.It’s streak is white or pink. 2.crystal faces are usually curved.

13. 1.My streak is black. 2.I often has blue,red,and purple tarnish.

15. 1. My streak is colorless white. 2.I taste salty,I brake in cubes.

17. 1.My streak is purple,green,yellow. 2.My crystals are cubes,transparent.