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Methane hydrate-I: 46(H2O)·2(S)·6(L)
Comments: Yellow to white outcropping of massive methane hydrate infested with 2 to 5 cm polychaete worms (Hesiocoeca sp), AKA "ice worms".
Location: 540 meters deep in the Gulf of Mexico.
Scale: Picture size 30 cm.
© Charles Fisher / Penn State