Also, since you mention hues, which had not factored into my identification, the picture from the book appears to be a white marble with an opaque black patch.
Such as this marble: https://www.ebay.com/itm/134538789806
^^ that seller's title and asking price are highly questionable! LOL. But I liked the photo in my google results and I was in a hurry, and now I have to leave!