Rocks & Minerals Safety - Streak and Hardness tests: I have a safety question on Pearsons 91 activity “comparing minerals”.

Rocks & Minerals Safety - Streak and Hardness tests: I have a safety question on Pearsons 91 activity “comparing minerals”.
This information sheet is an updated review of the answers to the following questions, and replaces the previously published Q&As:
This resource explores Earth's resources.
This online resource explores Australia's mineral wealth.
This online resource supports Year 8 Earth and chemical sciences.