abelsonite
... that the mineral abelsonite probably formed from chlorophyll and is the only known crystalline geoporphyrin?
... that the mineral <b id="mwCP0"><a href="./Abelsonite" id="mwCP4" rel="mw:WikiLink" title="Abelsonite">abelsonite</a></b> probably formed from <a href="./Chlorophyll" id="mwCP8" rel="mw:WikiLink" title="Chlorophyll">chlorophyll</a> and is the only known crystalline <a class="mw-redirect" href="./Geoporphyrin" id="mwCQA" rel="mw:WikiLink" title="Geoporphyrin">geoporphyrin</a>?