Thanks!
I meant that I need to delve deeper into its micro structure. I have to know quite a bit about anodizing and plating for work, but I'm lacking when it comes to parkerizing.
Here is my current setup. I''ve done one zinc test part, then went on to a few others where the intent is to turn the parts green. The owner of palmettoenterprisesparkerizing told me to take WWII era cosmo (they have since changed formulation) and slather the parts as soon as they dry coming out of the bath. Then wrap tightly with aluminum foil. The parts will be unwrapped in a week.
The basic grey color matches a buddy's 1911 he got from his grandfather. Grandfather was a Korean War era MP who purchased his duty pistol after service. But it was shipped at a later date (he has the box too...). The pistol's finish is immaculate. Methinks that it was shipped later because he requested it to be refinished and they skipped the chromate bath. I know that there are two lines of thought as to why the park turns green, some people saying cosmo, others the chromate treatment. Ok, enough digression....