As a newcomer to this stock, I am still doing my research. I am...

As a newcomer to this stock, I am still doing my research. I am happy with my investment and looking to hold for a while.

I would just like some thoughts on:

(1) Why the big run-up in share price starting 7 months ago - from $2 to $6...

(2) Why the drop back to $2?

Am I right in saying the catalyst 7 months ago was Eritrean potash? Or was there another reason?

And am I right in assuming the share price got a little carried away for a project that is still about 5 years off? Or are there other reasons?