The hardest substance in a rock would be the hardest mineral of which the rock is composed.
The hardest rock is PANTERA, or Diamonds. Depending on your question.
The harder rock is diamond
The hardest substance that is naturally occurring is a diamond. However, there are harder substances that have been made by scientists in labs.
Probably orthoquartzite, although some consider it a metamorphic rock.
The hardness of a rock is called its "Mohs scale hardness." This scale ranks minerals and rocks based on their scratch resistance, with diamond being the hardest at 10 and talc being the softest at 1.
The diamond is the hardest rock (or mineral).
Corundum is a mineral, therefore it could not be the hardest rock.
Diorite is the second hardest rock in the worl - Vellond
The hardest rock is PANTERA, or Diamonds. Depending on your question.
Music or an actual rock?
Diamonds are the hardest rock.
yes
Corundum.
The softest rock is generally talc, with a Mohs hardness of 1, while the hardest rock is diamond, with a Mohs hardness of 10. Other common rocks fall in between, such as gypsum (2), calcite (3), quartz (7), and feldspar (6-7).
Yes, it is the hardest natural rock on earth.
The harder rock is diamond
Diamond.