Metanatural circulatory speculations

Do angels have ichor within their veins? 
Or is it just vampires and demons and 
sundry undead? I knew one once. Maybe 
two. The ape of an angel at least, she 
was. Maybe they. I could have should asked
her, I'd have never bled her. But I suspect 
(or reckon at least) if they do,

it would be mother-pearly white,
with thick iridescent sheens rainbow'd through.
Not all that thick sludge to appall our affright. 
It would be like the sun, just caught 
by the dew. Except far more solidity 
then a dewdrop. Like crystal like carbon 
like far harder more. Like matter itself 

made liquid to flow through such veins 
apprehensively permanent pure.