The left one doesn't appear to be oxblood. Right one looks like a UV reactive silver oxblood. Akro lemonades are quite yellow, add oxblood and that's what I think of as an akro lemonade oxblood. This one doesn't look yellow except under certain conditions and then not really yellow like a lemonade, like the example Ron showed. Either way, it's a good looking marble, names are hard to figure out sometimes.
Those are rare gypsum marbles, made in the 1700s in italy. Only 20-30 are known to exist, usually sell for $1,00-1,500 depending on condition and pattern. Too bad on the broken one!
Just kidding, don't swallow your tongue, I agree with Steph!