jancancook
Posts : 159 Join date : 2011-02-23
| Subject: Granite is nearly always massive Wed Mar 16, 2011 9:39 pm | |
| Granite is nearly always massive (lacking internal structures), hard and tough, and therefore it has gained widespread use as a construction stone. The average density of granite is between 2.65[1] and 2.75 g/cm3, its compressive strength usually lies above 200 MPa, and its viscosity at standard temperature and pressure is 3-6 • 1019 Pa·s.[2] The word granite comes from the Latin granum, a grain, in reference to the coarse-grained structure of such a crystalline rock. Granitoid is a general, descriptive field term for light-colored, coarse-grained igneous rocks. Petrographic examination is required for identification of specific types of granitoids.[3] Damp cigaretangina medication | |
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