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Let's assume that the density of marble is 2.76 gm/cm3. Marble varies somewhat in density depending upon the type of marble; so your marble may vary from this number.

0.75 inch X 1 square foot X 144 square inches/square foot = 108 cubic inches

2.76 gm/cm3 X 16.39 cm3/cubic inch X 108 cubic inches = 4886 gms

0.00220 pounds/gm X 4886 gms = 10.7 pounds

Q: How much does a .75 inch thick piece of marble weigh per square foot?

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It would weigh about 14.3 pounds .

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It would weigh about 14.3 pounds .

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