Answer: Looks similar to a smoky quartz.
Answer:
https://guides.lib.purdue.edu/c.php?g=352816&p=2377942#:~:text=figures%20and%20tables.-,Discussion,the%20reasons%20for%20the%20errors.
Explanation:
used this help with your lab write up
Answer: 3 types
Explanation: igneous, sedimentary and metamorphic.
Answer: Long half-life of potassium