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RT @CristinaGardens: Oyster shells is mostly calcium carbonate (33% calcium) #groundchat https://t.co/T1UkAXEIto
RT @CristinaGardens: Oyster shells is mostly calcium carbonate (33% calcium) #groundchat https://t.co/T1UkAXEIto
Oyster shells is mostly calcium carbonate (33% calcium) #groundchat https://t.co/T1UkAXEIto
Researchers in Brazil and Iraq test oyster shell powder as a renewable filler for #plastics. See http://t.co/VFk4Ogqs & http://t.co/jLfs7mkJ