A diamond. Actually, a diamond can be scratched my other minerals.
Diamond is the hardest mineral and is most resistant to being scratched. It is ranked as a 10 on the Mohs scale of mineral hardness, making it the hardest naturally occurring substance.
Diamond is the mineral that is most resistant to being scratched. It is the hardest known natural substance, scoring a 10 on the Mohs scale of mineral hardness.
Diamond can scratch talc but is not scratched by calcite. Diamond is the hardest mineral on the Mohs scale, making it capable of scratching minerals with a lower hardness, like talc.
A mineral that can be scratched by a penny (which has a hardness of about 3.5 on the Mohs scale) but not by a fingernail (which has a hardness of about 2.5 to 3) would have a hardness between 3 and 3.5. This means the mineral's hardness is likely around 3.2 to 3.4, indicating it is softer than the penny but harder than a fingernail. Examples of minerals that fit this description could include calcite or gypsum, depending on their specific characteristics.
A diamond. Actually, a diamond can be scratched my other minerals.
The mineral that can be scratched by a penny is talc. Talc is the softest mineral on the Mohs scale, with a hardness of 1. A penny has a hardness of around 3.5 on the Mohs scale.
Diamond is the hardest mineral and can only be scratched by another diamond.
Diamond is the hardest mineral and is most resistant to being scratched. It is ranked as a 10 on the Mohs scale of mineral hardness, making it the hardest naturally occurring substance.
The mineral that can only be scratched by diamond is diamond itself. Diamond is the hardest known natural mineral, scoring 10 on the Mohs scale of mineral hardness.
The mineral that can be scratched by glass but not a penny is calcite. Calcite has a hardness of 3 on the Mohs scale, which is lower than the hardness of glass (5.5) but higher than that of a penny (2.5).
minearls
Diamond is the mineral that is most resistant to being scratched. It is the hardest known natural substance, scoring a 10 on the Mohs scale of mineral hardness.
Hardness is the ability of a mineral to resist being scratched. A diamond is the hardest mineral--which means that no other mineral can scratch it.
Hardness is the ability of a mineral to resist being scratched. A diamond is the hardest mineral--which means that no other mineral can scratch it.
Mineral X could be anything. Diamond is the hardest mineral (10 on Mohs' scale) and can scratch all other minerals including another diamond.
The most commonly known mineral that can be scratched by a fingernail is talc.