[Engineering Version] Daily Question 20180410
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Among the following statements about marble, identify which one is not entirely correct ( ). a. Marble is an alkaline type of stone; it is susceptible to erosion by acids, which can affect its usability. Therefore, with very few exceptions, polished marble sheets are not suitable for use in outdoor applications.b. Marble is a metamorphic rock and is considered a neutral-type stone.
c. The chemical composition of marble consists of CaCO3 and MgCO3, which classifies it as an alkaline stone.
d. Marble has a cryptocrystalline structure and is considered a stone of moderate hardness. Answer: b
a. Marble slabs are an alkaline type of stone that is susceptible to erosion by acids, which can affect its usability; therefore, with very few exceptions, polished marble slabs are generally not suitable for use in outdoor applications
b. Marble is a metamorphic rock and is a neutral-type stone
b. Marble is a metamorphic rock and is a neutral-type stone
d. Marble has a cryptocrystalline structure and is a stone of moderate hardness
This post was last edited by I believe LEE on 2018-4-10 09:30. b. Marble is a metamorphic rock and is considered a neutral-type stone
b. Marble is a metamorphic rock and is a neutral-type stone