Recommended tool for cutting 3cm soapstone slab

[Rman]

I am looking for advice re: the best choice of a tool to make a single cut about 10 feet long to divide a large soapstone slab into 2 pieces. I am not a stone fabricator by trade but I am having a soapstone slab cut into a number of irregular shaped pieces by a water jet cutting machine . They cannot place the entire slab on the machine so I have to cut it into two pieces after the stone supplier delivers it to them. I cut a small sample with a hand held 4.5 inch grinder but the blade was too small to cut all the way through and it was slow to cut. I have seen some online video of a circular saw with a diamond blade being used to cut stone and I am also considering a grinder with a 5 inch dia. blade. Any recommendations re: the best choice of a tool to get the job done would be appreciated.

[GCA]

5" blade on the grinder will be the cheapest most effective route. spraying it with water will help keep it cool and the dust down.

[Darryl Miller]

Soapstone is soft enough to cut with a good carbide tipped blade on a circular saw.

[colin]

What Darryl said. If its actually soapstone and not slate or something than a carbide blade on a circular saw will do just fine.

[ryanberglind]

I used to cut soapstone all day with worm drive skill saw and a diamond blade. Use water and it cuts like butter, Clamp a straight edge because the water will take your line off.