Welcome. PM me with any sharpening questions, Cheryl. Or ask them here if you'd like. I 've been a woodworker most of my life and taught tool sharpening for nearly 13 years. I think I've used (and own) pretty much every kind of sharpening stone, jig, widget and machine that's been invented.
You can lubricate an oil stone nicely by adding dish soap to water. Once an oil stone is saturated with oil, you will never remove all the oil from it, so it is best to continue using oil. Kerosene is an old time lube for Arkansas stones. A little thinner than mineral oil. By the way, you can use unscented lamp oil in place of mineral oil, and you aren't paying for something labeled "food safe" Heck, any cooking oil would technically work.
Abrasive technology has come a long way, yet is well rooted in the past, still. Natural Arkansas stones and quarry cut japanese water stones are among the best sharpening stones you can get. But, they are getting more rare each day. Of course there are modern versions too.
Also, keep in mind as regarding grits of stones that there is more than one "grading system"
Here are a few useful comparison charts:
http://micro-surface...page=page&id=16
http://www.fine-tools.com/G10019.htm
Jake