Bill Minarik<p>Perovskite is found just west of Montreal in the Oka Complex; Carbonate-rich, silica-poor magma emplaced in the Cretaceous. The site was mined for niobium in the 1960's and 1970's -it's also enriched in REEs and thorium.</p><p>There’s more about perovsite at Oka on MinDat:<br><a href="https://www.mindat.org/locentries.php?p=14009&m=3166" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">mindat.org/locentries.php?p=14</span><span class="invisible">009&m=3166</span></a><br>a non-profit mineral data base founded in 2000 by Jolyon Ralph (who is on Mastodon at <span class="h-card" translate="no"><a href="https://ecoevo.social/@jolyon" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>jolyon</span></a></span> )</p><p><a href="https://fosstodon.org/tags/MinCup24" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MinCup24</span></a> <a href="https://fosstodon.org/tags/Perovsite" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Perovsite</span></a> <a href="https://fosstodon.org/tags/Oka" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Oka</span></a> <a href="https://fosstodon.org/tags/Carbonatite" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Carbonatite</span></a> <a href="https://fosstodon.org/tags/Quebec" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Quebec</span></a> <a href="https://fosstodon.org/tags/Canada" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Canada</span></a> <a href="https://fosstodon.org/tags/niobium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>niobium</span></a></p>