Answer:
The more of me there is the less you see.
Taken from a mine and then locked up in a wooden case. I am used by students everyday.
What can be drawn but never taken?
It flies around all day but never goes anywhere? What is it?
I'm a word that's hardly there. Take away my start and I'm an herbal flair. What am I?
When is it bad luck to see a black cat?