Assertion: cuttlefish's cuttlebone | /r/MadeOf | aragonite
Facets:
Source sentences:
text: Cuttlefish possess an internal structure called the cuttlebone, which is porous and is made of aragonite.
text: The cuttlebone is porous and is made of aragonite and has air-filled spaces that regulate the gas-liquid ratio by pumping liquid in or out.
text: Cuttlebone is made of aragonite, that is, crystallized calcium carbonate.
text: Cuttlebone is the hard and porous internal structure found in the cuttlefish, which is made of aragonite.