What are the five characteristics a substance must have to be classified as a mineral?

A mineral has to be naturally occurring, inorganic, solid, have a crystal structure, and have a definite chemical composition.

Step-by-step explanation: hoped i helped and i am joyous to help

yes

Step-by-step explanation:

For problem involving percentage,

Stwp 1. first you add all the values together to get a total value.

Step 2. To get the percentage of a particular datum to the whole data you divide the value of that datum by the total value gotten from step one above and multiply your answer by 100

Example: in a class of 60 boys and 80 girls, what percentage of the class are boys?

Step 1: total people in class is 60 + 80 = 140

Step 2. Percentage of boys = 60/140 x 100% = 42.85%

I hope this helps.