Thank you to those who replied with relevance to the topic, they may help others.
 
	Although after running around wild for a few hours, I ended up in Ashenvale and just around Splintertree Post, the river surrounding it that splits off into three ways. I found silver all along the edge of that and sometimes under water. Roughly 10 veins in one run total, I advise to go there if anyone is struggling with the same problem.