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Pyrite is harder than gold. While Pyriteâs hardness is 6 to 6.5, gold has hardness around 2 to 3. Pyrite also contains high amount of iron. There is also a big difference in the specific gravity between gold and pyrite.While gold has a specific gravity of 15.6/19.3, pyrite has 5.0.old vs Pyrite. It is easy to make out the difference between Gold and pyrite. They have much difference in their structure, colour, hardness and specific gravity. When comparing gold and pyrite with regard to their colour, both have a metallic lustre but have different yellow tones.
Pyrite or iron pyrite is known as fool's gold because of its  color. It is somewhat gold in color and has many of the hues  associated with the precious metal.yrite can be identified as a bright-yellow mineral, with a  bright-metallic luster. Pyrite can be used to spark a fire if  struck against metal or another hard material. Py â¦ rite was used as a  spark-producing material in flintlock firearms.