Question

Describe rignious reaction on the learning that the ring had been found

Answer 1

On a chemical basis, basalts can be classified into three broad groups based on the degree of silica saturation.  This is best seen by first casting the analyses into molecular CIPW norms (the same thing as CIPW norms except the results are converted to mole % rather than weight %).  On this basis, most basalts consist predominantly of the normative minerals - Olivine, Clinopyroxene, Plagioclase, and Quartz or Nepheline.