butzbach

I found this marble in a shop. Loved it and the color. Didn't cost much, maybe $3.- bucks or less. Again, the color is wonderful and it has this faint clear streak thru it that at first glance makes you think there is a crack in it, but it's not. Just wondered if anyone has seen one just like it and has any info on it. I sorta new to collecting marbles. thx