Hello Partners,
Below is a photo of a black kitchen counter that has a honed finish and quite a few blemishes that look like etch marks and scratches.  At first, I thought it is soapstone but I am not sure.  I took a piece of a diamond-encrusted pad (800 grit) and tried it on a blemished area (by hand with water) and it did nothing. 
If it is soapstone, what would I use to get the piece to have a consistant honed finish and what would I do to preserve it; ie, sealer  (or oil?)
Thanks in advance for your help,

Thank You,
Barry V Raduta
Diamond Stone & Tile Care-South
Stone & Tile Pros