Hello Mike, et al,
I do carve stone...sometimes on a regular basis and quarry in several traditional fashions including "salvage" and "erratics" quarrying methods. I was lucky to even do a last production run in an Amish slate quarry with mule. I have been meaning to start a thread with a similar title to this on...so it is serendipitous that it is now has been made. I will start with the basics for to read through, and consider. After that, please let me know if I can answer more detailed questions.
The basic stone kit is made up of a mix of power and hand tools all dependant on need, skill level, and goals:
Lifting and prying tools...
Splitting tools...
Rough working tools...
Finer Carving tools...
I would start with a source that has been around in the same Blacksmith shop, and forge for well over 100 years...
Trow and Holden I am biased as I know the owner and most of his team. There are others with similar histories (most tie back to T&H in some way.)
Below are an example of what can be achieved..."scarf joint in granite."
Some tools I work with...