We use recrush all the time. It is typically darker than virgin crushed gravel because there are many different stains and colors mixed in the recrush. Depending on the batch you may even get some asphalt in the load, and occasionally you might get a scraping of dirt.
When we test for hardness, we can get it harder faster using recrush than we can using virgin Class 2 base. As long as you have a 1" chip minus, meaning all different sized chips along with dust you will be fine. I5t also could have been a concrete that was mixed from the plant using fly ash rather than cement, which typically produces a darker load. Many plants began using fly ash on common work 30 years or so ago as a means to try and recycle it.
When you ordered did you ask for a certified run, like a particular number for the base?
Anytime you mix a larger stone into the dust you will create more cohesion, and as long as you wet it down as you pack it, it will dry hard as concrete. Just don't wet it too much and pack away..
In the year 1491, if the Naturescape Landscape Company did the site work in Pisa, Italy, they would not be calling it the "leaning" tower.
Encinitas, Ca. 92024