Numbers 11:7

והמן כזרע גד AND THE MANNA WAS AS CORIANDER SEED — He who said that (the previous verse) did not say this: Israel said, “our eyes are only on this manna”, but the Holy One, blessed be He had it written in the Torah, and the manna was like coriander seed” — as much as to say “See, ye people of the world, about what My sons were complaining, whilst as a matter of fact the manna is excellent in so many different ways!” (Sifrei Bamidbar 88). כזרע גד i.e. it was round like גד, coriander-seed in O. F. הבדלח is the name of a precious stone. BEDELLIUM. (Some editions add the O. F. קרישטל crystal).

וְהַמָּ֕ן כִּזְרַע־גַּ֖ד ה֑וּא וְעֵינ֖וֹ כְּעֵ֥ין הַבְּדֹֽלַח׃

And the manna was like coriander seed, and its colour was like the colour of bdellium.