For anyone that's interested, here is a comparison of the grit size of the two readily available Cherry Stone products that so many of us use in our soil mixes or top dressing.
-The first is the #2 Sioux Quartzite chicken grit (called 3/16"). Many here use it on top of the soil around their semps. About $6.50 - $7.50 for a 50 pound bag.
-The second is Traction Grit. This is the first time I have bought any so didn't know what to expect. Not as closely screened and uniform as the #2 grit and ranges in size from coarse sand to almost the #2 size of Sioux Quartzite. $3.50 for a 25 pound bag. Harder to find, at least around here, unless you buy it unbagged by the dump truck load.
Here are pictures for comparison. Sitting on top of a cull piece of polished Sioux Quartzite for effect.
