Talc
It's called the Mohs scale of mineral hardness.
If a fingernail can scratch a mineral, you are testing the mineral's hardness. Hardness is a measure of a mineral's resistance to being scratched by other materials. Minerals are ranked on the Mohs scale of hardness from 1 (softest) to 10 (hardest).
Tals, a mineral, has a hardness of 1 on the Mohs scale of relative mineral hardness, a 1 being the one able to be scratched by the remaining nine minerals. It's soft.
The mineral with hardness 3 will get scratched.
Talc is the softest mineral on the Mohs hardness scale. It has a hardness of 1 and can be easily scratched by other minerals.
Talc.
The hardness range for a mineral is determined using the Mohs scale of mineral hardness, which ranks minerals from 1 (softest) to 10 (hardest) based on their ability to scratch or be scratched by other minerals.
The resistance of a mineral to scratching is measured using the Mohs scale of mineral hardness. This scale ranks minerals from 1 (softest) to 10 (hardest). The resistance to scratching is determined by testing the mineral's ability to scratch or be scratched by another mineral on the scale.
The hardness of a mineral is determined using the Mohs scale, which ranks minerals from 1 (softest) to 10 (hardest). This scale is based on the ability of a mineral to scratch another mineral. To test the hardness of a mineral, various methods can be used, such as scratching it with a known mineral or using a tool like a hardness testing kit.
Talc is the softest mineral and classified as 1 on the Mohs hardness scale.The Mohs scale minerals from softest to hardest:1. Talc (softest)2. Gypsum3. Calcite4. Fluorite5. Apatite6. Feldspar7. Quartz8. Topaz9. Corundum10. Diamond (hardest)
the mineral that has a hardness of 7 is "Quarts
The range of Chart is as non metallic