I have a hunk o' coke I picked up along the tracks years ago, and it's quite porous and a medium gray color, like charcoal, I'd say. The piece is about four inches by six inches by three inches or so. So maybe O scale ballast would work?
toggle quoted messageShow quoted text
So... you think a dark gray ballast (basalt rock) from AZ-Rock would do?
Is HO scale ballast about the right size for coke?
(I'm asking because I just finished my B&O O-27 gondola w/ coke containers
and I was wondering if I should just leave them empty...)
Jerry:I wouldn't say silvery... it's not shiney at all, and nowhere near that light in color. I remember handling it for my neighbor's forge when I was a kid. If I had to match it for color, I'd say somewhere between Floquil Grimy Black and a photographer's 18% gray card (anyone still use those things?)
Coke is usually a light grey, silvery color, at least from the old
beehive or the more modern non-recovery systems (you didn't specify era). I
am less sure about coke from a byproduct plant.
If I had to build a load, I'd use scale coal or ballast and spray paint it with a dead flat dark gray., maybe a dark gray automotive primer from a spray bomb.