Question

This is the resistance of a mineral to scratching


Hardness


Luster


Streak

Answer 1

The correct term that describes the resistance of a mineral to scratching is **hardness**. Hardness measures how easily a mineral can be scratched by other substances and is commonly assessed using the Mohs scale, which ranks minerals from 1 (talc) to 10 (diamond) based on their scratch resistance.

- **Luster** refers to the way a mineral reflects light (e.g., metallic, glassy, dull).
- **Streak** is the color of the powdered form of the mineral, which is obtained by rubbing it against a porcelain plate.

So, the answer is **hardness**.