Bluestone: The main component of bluestone is fine calcite, which contains calcium oxide and magnesium oxide.

Marble: The main component of marble is calcium carbonate, and others are magnesium carbonate, calcium oxide, manganese oxide and silicon dioxide.

Second, the sources are different.

Bluestone: Bluestone is a gray or grayish white sedimentary rock, which is produced in Hu Hai Basin.

Marble: white limestone with black patterns produced in Dali, Yunnan.

Third, different origins.

Bluestone: The origin of bluestone is mainly Shandong, Sichuan and Hubei.

Marble: The origin of marble is mainly Dali, Yunnan.

Fourth, the density is different.

Bluestone: The density of bluestone is 3.7-3.8.

Marble: The density of marble is 2.6-2.8.

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