Thursday, 5 November 2015

Calcareous Microtonalite

It is a beautiful white rock sample taken from 12m below ground level around Serian Volcanic area. It has pale shade of green across the section which indicates the presence of  chlorite. Indeed, it reacts mildly with hydrochloric acid. If it is limestone, it would react violently with the acid. It is solid and heavy and is an igneous rock.


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