Stellerite is the rarer cousin of the much more common zeolite, stilbite. Stellerite crystals can aggregate together to form a structure resembling wheat sheafs. This hourglass structure looks like several crystals stacked parallel to each other with the tops and bottoms of this structure fanning out while the middle remains thin. More commonly stellerite is found in rounded radiating clusters or as single crystals. Stellerite and stilbite are almost identical is certain situations. Stellerite however appears more transparent and is usually uncolored.