[Arid_gardener] Granite as soil amendment

[Bill Woody]

Most of the rock and gravel companies sell 1/4-inch washed granite,
essentially no fines.  Also, most of them have displays where you can see
what it looks like.

This is meddling rather than answering your question.  I tend to think that
bark or mulch would be better than granite to loosen clays if you want to
grow things in the amended soil.  They are also much easier to transport and
handle, unless you're a muscular young guy with your own truck.  I'm
assuming you have a small plot, not a half-acre.

More authoritative responses from the MGs are welcomed.

Bill Woody