The video tutorial describes a mineral that is clear to white in color, has 90-degree angles at its corners, and can be scratched with metal but not easily with a finger. This information helps in identifying the mineral's properties such as color, angles, and hardness.

What is the color of the mineral described in the video?

• Green

• Blue

• Clear to white

• Red

What is the angle measurement at the corners of the mineral?

• 120 degrees

• 45 degrees

• 90 degrees

• 60 degrees

Which tool can scratch the mineral?

• Wood

• Plastic

• Metal

• Glass

Is the mineral easily scratched by a finger?

• Yes, very easily

• No, not easily

• Only with great effort

• Not at all

Which of the following best describes the mineral's hardness?

• Soft enough to be scratched by a finger

• Hard enough to resist metal

• Can be scratched by metal but not by a finger

• Cannot be scratched by anything