sérandite
... that sérandite was discovered in Guinea and described in a French journal, and the type material resides in Washington, D.C.?
... that <b id="mwBAs"><a class="mw-redirect" href="./Sérandite" id="mwBAw" rel="mw:WikiLink" title="Sérandite">sérandite</a></b> <i id="mwBA0">(pictured)</i> was discovered in Guinea and described in a <a class="mw-redirect" href="./Comptes_rendus_de_l'Académie_des_sciences" id="mwBA4" rel="mw:WikiLink" title="Comptes rendus de l'Académie des sciences">French journal</a>, and the type material resides in Washington, D.C.?