Which stone has a hardness of 7 in the Mohs hardness scale?
The stone with a hardness of 7 in the Mohs hardness scale is a diamond. Which gemstone is most powerful? It depends on the individual. Some gems are more powerful than others due to their unique properties. Some gems that are commonly considered to be powerful gems include turquoise, sapphire, and peridot. What stones are ... Read more...