Examples of prograde metamorphic reactions. Abbreviations of mineral and other phases: ab = albite; alm = almandine (= Fe-garnet); and = andalusite; AS = aluminium silicate (= either kyanite, andalusite or sillimanite); bi = biotite; chl = chlorite; cld = chloritoid; crd = cordierite; crn =            ; gln = glaucophane; Kfs = K-feldspar; kln = kaolinite; ky = kyanite; mag = magnesite; ms = muscovite; ol = olivine; phl = phlogopite; prl = pyrophyllite; q = quartz; sill = sillimanite; st = staurolite;
<ul><li><a href="//commons.wikimedia.org/wiki/File:Reazioni.svg" title="File:Reazioni.svg">Reazioni.svg</a>: <a href="//commons.wikimedia.org/wiki/User:Fradeve11" title="User:Fradeve11">Fradeve11</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Woudloper" title="User:Woudloper">Woudloper</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Woudloper" title="User talk:Woudloper"><span class="signature-talk">talk</span></a>)</li></ul>
CC BY-SA 3.0
<ul><li><a href="//commons.wikimedia.org/wiki/File:Reazioni.svg" title="File:Reazioni.svg">Reazioni.svg</a></li></ul>