Large deposits of fine almandine-garnets were found, some years ago, in the Northern Territory of Australia, and were at first taken for rubies and thus they were known in trade for some time afterwards as Australian rubies.
Kristalizira v kubičnem kristalnem sistemu v prostorski skupini Iad, z mrežnim parametrom a ≈ 11,512 Å pri 100 K.Almandin je antiferomagneten z Néelovo temperaturo 7,5 K. Vsebuje dve ekvivalentni magnetni rešetki.