| A | B |
|---|
| mineral. | a natural,usually inorganic solid that has a characteristic chemical composition and an orderly internal structure |
| element | a substance that cannot be separate or broken down into simpler substances by chemical means |
| atom | the smallest unit of an element that mantains the properties of that element |
| compound | a substance made up of atoms of two or more different elements joined by chemical bonds |
| matter | anything that has mass and takes up space |
| crystal | a solid whose atoms,ions, or molecules are arranged in a regular,repeating pattern |
| streak | the color of a mineral in powdered form |
| luster | the way in which a mineral reflects light |
| cleavage | in geology,the tendency of a mineral to split along specific planes of weakness to form smooth,flat surfaces |
