Gravestones

Composition and Mineral Makeup

Granite is an igneous rock. This implies that its formation involves intense heat. Granite in Michigan is molded through the solidification of molten magma. Granite is composed mainly of Plagioclase feldspar, Potassium feldspar, and quartz- in different proportions. It comes in different colors, largely due to its mineralogy.

Marble in Michigan, on the other hand, is a crystalline rock formed through the process of metamorphism. Sedimentary rocks such as dolomite rock and limestone undergo metamorphosis, whereby they change in structure as their mineral grains are crystallized anew. The end product is a marble rock used in the making of kitchen marble countertops in Michigan, floor tiles, etc.

Density

Owing to the fact that granite in Michigan is formed through intense heat, it is of a higher density compared to its counterpart: Marble in Michigan. The thickness of granite ranges from 2.65 to 2.75 g/cm3. The average density of Marble is 2.5 g/cm3. This automatically implies that granite is more challenging than Marble, and hence the former would be preferable in more challenging conditions.

On the other hand, Marble is most suitable in a gentler environment as it scratches more efficiently and is less resistant to chemical substances such as acids – unlike granite. Not to underestimate its strength, though, Marble is also challenging and would resist a relatively high impact.