Assertion: dolomite | /r/HasAspect | a chemical composition
Facets:
Source sentences:
text: It is in this area, where the core of the calcareous massif is a regional structure and consists essentially of dolomite, which has a chemical composition greater than 98% of dolomite CaMg (CO 3 ) 2, which is why the dolomitic rock is defined from "high, to very high purity" according to the classification of "Mineralogy and Petrology Group, British Geological Survey".